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Forum: performance & modifications Today, 12:44 PM
Replies: 5
Views: 118
Posted By bobxyz
With surviving pictures:...

With surviving pictures: http://forums.turbobricks.com/showthread.php?t=277297
Forum: aftermarket engine management Yesterday, 07:44 PM
Replies: 45
Views: 12,738
Posted By bobxyz
I found a manual for your craftsman meter, and...

I found a manual for your craftsman meter, and the 9v BAT setting only loads the signal with a 1.5K resistor (6mA), which won't affect your measurements. The 1.5v BAT setting adds a 15ohm load...
Forum: maintenance & nonperformance Yesterday, 07:29 PM
Replies: 2
Views: 140
Posted By bobxyz
1) are there any EZK codes, or just 1-1-1 ? 2)...

1) are there any EZK codes, or just 1-1-1 ?
2) does the CEL/MIL work? when did it come on?
3) has anyone else attempted to fix it before you?
4) I don't know if it's possible to mis-connect, but...
Forum: aftermarket engine management 09-15-2021, 09:58 PM
Replies: 45
Views: 12,738
Posted By bobxyz
Uhhh, I looked at your video and you want to set...

Uhhh, I looked at your video and you want to set your meter to the 20V DC position. I don't know what the 9V BAT position does, but it might be screwing up all your measurements, especially if it's...
Forum: maintenance & nonperformance 09-15-2021, 09:54 PM
Replies: 7
Views: 299
Posted By bobxyz
The OEM faceplate is for flat-front gauges, it...

The OEM faceplate is for flat-front gauges, it won't work if the gauge front sticks out. My Innovate AFR gauge has a bubble front. I just used a flat blanking plate and cut a hole in it with a 2...
Forum: maintenance & nonperformance 09-15-2021, 09:35 PM
Replies: 8
Views: 1,775
Posted By bobxyz
Don't the original ones all look like this? ...

Don't the original ones all look like this?
https://i.ibb.co/pfFPRY1/85-melted-headlight-switch-connector.jpg

It's really easy to add a cube relay to prevent overheating the headlight switch. ...
Forum: aftermarket engine management 09-14-2021, 11:21 PM
Replies: 41
Views: 11,961
Posted By bobxyz
TLDR: come back in a few days to a week. I'm...

TLDR: come back in a few days to a week. I'm hoping to have my first real LH2.4 log very soon.

Wow, just over 3 months since getting prototype boards back from China and I still haven't generated...
Forum: aftermarket engine management 09-10-2021, 05:36 PM
Replies: 41
Views: 11,961
Posted By bobxyz
Yeah, that bobxyz guy can be a real slacker when...

Yeah, that bobxyz guy can be a real slacker when work/family/Summer intervene. I'll see if I can kick his butt to put together an update in the next few days. :-P
Forum: performance & modifications 09-10-2021, 05:34 PM
Replies: 23
Views: 943
Posted By bobxyz
How's the MaxxECU Sport do for some of the...

How's the MaxxECU Sport do for some of the MegaSquirt-II/MicroSquirt problem areas?
- 60-2 flywheel with a VR sensor?
- injector deadtime/offset adjustment and voltage/temperature compensation?
-...
Forum: maintenance & nonperformance 09-03-2021, 06:40 PM
Replies: 6
Views: 494
Posted By bobxyz
It's a pretty beefy bracket, and a really heavy...

It's a pretty beefy bracket, and a really heavy compressor. Once you get it off, if flexing is a worry, you could easily weld a couple diagonal braces.

(For fun, you can try to take the...
Forum: performance & modifications 09-03-2021, 06:25 PM
Replies: 6
Views: 528
Posted By bobxyz
You just need a couple generic 1K 1/4W 5%...

You just need a couple generic 1K 1/4W 5% resistors - pick one:
https://www.diyautotune.com/product/megasquirt-pullup-resistors-39modkit-39/...
Forum: maintenance & nonperformance 09-03-2021, 03:27 PM
Replies: 14
Views: 631
Posted By bobxyz
Check that your engine mounts aren't shot, which...

Check that your engine mounts aren't shot, which might allow the engine to tilt and stretch the harness cables. Just shove sideways firmly and see if it moves.
Forum: aftermarket engine management 08-31-2021, 07:52 PM
Replies: 2,348
Views: 2,095,903
Posted By bobxyz
Great, glad that the Jetronic site and all the...

Great, glad that the Jetronic site and all the bins/xdfs are back.

From the home page:

That's very interesting -- is there a write-up somewhere of what was learned?

TIA,
Bob
Forum: performance & modifications 08-22-2021, 05:46 PM
Replies: 80
Views: 15,331
Posted By bobxyz
Post #10 is talking about the Bosch EZ117K ICU...

Post #10 is talking about the Bosch EZ117K ICU Ignition Control Units. There are 2 versions, both Bosch part number 0 261 201 012. The 2 board version, with the Intel (Philips) 8049 CPU, has a...
Forum: aftermarket engine management 08-22-2021, 05:33 PM
Replies: 45
Views: 12,738
Posted By bobxyz
^^^ That's great info. I'd check really...

^^^ That's great info. I'd check really carefully that the sensor ground and the power ground on the injectors isn't swapped somewhere. Check too that your original injector pinout info is from a...
Forum: performance & modifications 08-22-2021, 05:28 PM
Replies: 147
Views: 21,211
Posted By bobxyz
If you can grab the top hose, then your...

If you can grab the top hose, then your thermostat might be stuck or in backwards (I think backwards is only possible with skinny aftermarket thermostats).
Forum: maintenance & nonperformance 08-14-2021, 01:45 PM
Replies: 14
Views: 1,715
Posted By bobxyz
You're right, LH2.2 doesn't have a CEL. I wasn't...

You're right, LH2.2 doesn't have a CEL. I wasn't sure when the 740s went to LH2.4.

Let's say that you're running normally at 3K RPM under boost. There will be a slight vacuum between the intake...
Forum: maintenance & nonperformance 08-14-2021, 12:55 PM
Replies: 14
Views: 1,715
Posted By bobxyz
I'd guess on a collapsing hose, but checking the...

I'd guess on a collapsing hose, but checking the turbo can't hurt -- when the engine is cold, see if you can spin the turbo impeller by hand. Also try pushing it side-to-side and top-to-bottom while...
Forum: performance & modifications 08-14-2021, 12:47 PM
Replies: 23
Views: 3,262
Posted By bobxyz
The 954 is about the best of the LH2.4 boxes. ...

The 954 is about the best of the LH2.4 boxes. Its factory chip is for Turbo (bigger injectors) and EGR. Is the 760 engine/exhaust manifold setup for EGR? I think you can use the 954 with a...
Forum: aftermarket engine management 08-14-2021, 12:26 PM
Replies: 45
Views: 12,738
Posted By bobxyz
1) With the repaired fuel pump wires, what bad...

1) With the repaired fuel pump wires, what bad voltages are you seeing? Measured from where-to-where? What brand/model is your volt meter? (Some fancy meters will capture much shorter noise...
Forum: maintenance & nonperformance 08-13-2021, 09:23 PM
Replies: 14
240: b230f +16v
Views: 2,545
Posted By bobxyz
I'd open the back of the black EZK box and see if...

I'd open the back of the black EZK box and see if someone has converted it to chipable, and swapped in a 16v chip. I'd also look at the silver ECU and see if the tabs on the bottom have been pried...
Forum: performance & modifications 08-11-2021, 11:21 PM
Replies: 23
Views: 3,262
Posted By bobxyz
Nice looking 245! It's definitely LH2.4. ...

Nice looking 245!

It's definitely LH2.4. You'll need a Turbo ECU (for example, 0 280 000 937) and a Turbo EZK (e.g. 0 227 400 148). The earlier 5xx series ECU have reliability problems. Some of...
Forum: aftermarket engine management 08-09-2021, 08:22 PM
Replies: 14
Views: 1,755
Posted By bobxyz
Glad you're making progress :) With the...

Glad you're making progress :)


With the engine off, you could align it to TDC either with the crank pulley notch, or using a straw in a spark plug hole. When at TDC, use some white paint...
Forum: aftermarket engine management 08-09-2021, 08:12 PM
Replies: 14
Views: 1,755
Posted By bobxyz
With key on, not running, you can check the MAP...

With key on, not running, you can check the MAP sensor voltages with a meter at the MAP connector: across VREF and GND should be 5.0volts, across MAP and GND should be just under 5volts if you're...
Forum: aftermarket engine management 08-09-2021, 03:55 PM
Replies: 14
Views: 1,755
Posted By bobxyz
Did you remember to swap the TPS for a LH3.1...

Did you remember to swap the TPS for a LH3.1 version, or a 850 version with an adapter block? (Your originally posted pictures showed ~0 kpa and low TPS, which might be from the wrong or miswired...
Forum: performance & modifications 08-07-2021, 12:36 PM
Replies: 23
Views: 3,262
Posted By bobxyz
I'd forgotten the details from your earlier...

I'd forgotten the details from your earlier thread http://forums.turbobricks.com/showthread.php?t=361265 (http://forums.turbobricks.com/showthread.php?t=361265):


Your 240 most likely already has...
Forum: maintenance & nonperformance 08-05-2021, 06:44 PM
Replies: 26
Views: 2,398
Posted By bobxyz
If you have a copy of TP30432 (try...

If you have a copy of TP30432 (try ozvolvo.org/archive/ if not), it shows all sorts of early redblock distributors along with the advance curves. I think the vacuum ones are all for ported vacuum...
Forum: performance & modifications 08-04-2021, 07:11 PM
Replies: 23
Views: 3,262
Posted By bobxyz
I have no idea what system that box is from --...

I have no idea what system that box is from -- it's referred to as a "Volvo/Luxor Injector Amp", with partial details here: https://www.volvoforums.org.uk/showthread.php?p=2523514
I'd convert to a...
Forum: maintenance & nonperformance 07-31-2021, 12:20 PM
Replies: 16
Views: 1,365
Posted By bobxyz
Try:...

Try: http://forums.turbobricks.com/showpost.php?p=6081738&postcount=5
or search for 134a at ozvolvo.org/archive
Forum: aftermarket engine management 07-29-2021, 10:03 PM
Replies: 45
Views: 12,738
Posted By bobxyz
Your high voltage readings on +5Vref and on +12V...

Your high voltage readings on +5Vref and on +12V are still very strange.

For your Fuel Pump concerns, you may just be seeing the resistance of the main pump. I'd guess that the main pump is only...
Forum: maintenance & nonperformance 07-29-2021, 09:17 AM
Replies: 5
Views: 1,245
Posted By bobxyz
There's normally a schrader valve in the switch...

There's normally a schrader valve in the switch port of the accumulator/dryer so that you can change the switch without losing much refrigerant. I have no idea how well they work after many years of...
Forum: maintenance & nonperformance 07-27-2021, 07:13 PM
Replies: 4
Views: 1,107
Posted By bobxyz
^^^ Thanks, that explains the mystery spring and...

^^^ Thanks, that explains the mystery spring and plunger that I found in a box of free craigslist parts, along with the main PS pump body.
Forum: maintenance & nonperformance 07-27-2021, 07:09 PM
Replies: 14
Views: 2,144
Posted By bobxyz
Do you have an external voltage regulator on your...

Do you have an external voltage regulator on your alternator?

The '81 greenbook drawings (TP30316 from ozvolvo.org/archive) show it mounted by the passenger fender next to the radiator overflow...
Forum: performance & modifications 07-27-2021, 09:12 AM
Replies: 9
Views: 1,949
Posted By bobxyz
What engine management system does it have? Is...

What engine management system does it have? Is it K-Jet, Motronic, or LH? (I'm guessing Motronic.) A good picture of the engine bay would help.
Forum: maintenance & nonperformance 07-22-2021, 08:40 PM
Replies: 8
Views: 1,612
Posted By bobxyz
I'd connect ECU-30 to anywhere on the ignition...

I'd connect ECU-30 to anywhere on the ignition switch 50 to starter wiring. I don't know if the LH2.4 ECU uses it for anything with a manual transmission. Maybe fault detection, for example,...
Forum: maintenance & nonperformance 07-21-2021, 06:47 PM
Replies: 8
Views: 1,612
Posted By bobxyz
The ECU needs a 12 pulse per axle rev speed...

The ECU needs a 12 pulse per axle rev speed signal. The speedometers for 48 tooth differentials convert to the 12 pulse per rev signal (essentially, they drop 3 out of 4 pulses); the speedometers...
Forum: maintenance & nonperformance 07-20-2021, 07:08 PM
Replies: 8
Views: 1,612
Posted By bobxyz
Yes, you can delete them. The ECU uses them to...

Yes, you can delete them. The ECU uses them to increase the idle speed when the AC is running.


Your speedo needs to match the 12 tooth or 48 tooth cage. There will be a number on the speedo...
Forum: maintenance & nonperformance 07-19-2021, 10:12 PM
Replies: 5
Views: 1,748
Posted By bobxyz
I'd get the diag box working first -- it may not...

I'd get the diag box working first -- it may not help, or it might mislead you, but it's a good start. If press the button, does the LED turn on? If not, you're missing +12v or ground at the box. ...
Forum: performance & modifications 07-16-2021, 10:39 PM
Replies: 397
Views: 61,315
Posted By bobxyz
I realized that if I still had my VW Manx [style]...

I realized that if I still had my VW Manx [style] dune buggy, that this motor and controller would be in my garage already. I'd think the Manx would be a near perfect candidate for this setup --...
Forum: maintenance & nonperformance 07-16-2021, 06:02 PM
Replies: 8
Views: 1,238
Posted By bobxyz
If the cable really isn't making good contact,...

If the cable really isn't making good contact, just shove on it from the engine compartment to seat it further.

When you say "speedo hole" I'm assuming the speedometer in the cluster, and not the...
Forum: performance & modifications 07-16-2021, 05:57 PM
Replies: 397
Views: 61,315
Posted By bobxyz
I haven't kept up with this thread but, as a...

I haven't kept up with this thread but, as a point of reference, this showed up on the local craigslist yesterday:

Netgain WarP 9 DC Motor for Electric Vehicle (EV) - $200 (Longmont CO)...
Forum: maintenance & nonperformance 07-15-2021, 08:39 PM
Replies: 13
Views: 2,797
Posted By bobxyz
The service light is driven by the odometer and...

The service light is driven by the odometer and has absolutely no effect on engine performance (other than whatever slight effect old oil might have). There's a spring loaded gear that turns _very_...
Forum: maintenance & nonperformance 07-15-2021, 07:01 PM
Replies: 13
Views: 2,797
Posted By bobxyz
I think the late 240's have a Service light that...

I think the late 240's have a Service light that comes on every 5K miles (or whatever) to change the oil. It's reset by a lever on the back of the speedo. The CEL Check Engine Light, also called a...
Forum: maintenance & nonperformance 07-15-2021, 06:54 PM
Replies: 61
Views: 23,044
Posted By bobxyz
Try this A/C thread:...

Try this A/C thread: http://forums.turbobricks.com/showthread.php?t=330298&page=3
Forum: aftermarket engine management 07-12-2021, 09:41 PM
Replies: 16
Views: 1,626
Posted By bobxyz
Those "EZ116K Modifications" are from one of my...

Those "EZ116K Modifications" are from one of my old posts. I don't know if anyone ever followed those instructions completely and successfully -- I decided to stay with LH2.4 once I figured out how...
Forum: aftermarket engine management 07-12-2021, 07:13 PM
Replies: 16
Views: 1,626
Posted By bobxyz
It sounds like your sensor isn't wired correctly....

It sounds like your sensor isn't wired correctly.

The 2-pin LH2.4 sensor is actually 2 separate sensors in one body. One pin connects to the EZK, the other pin connects to the ECU, and the...
Forum: aftermarket engine management 07-10-2021, 01:24 PM
Replies: 16
Views: 3,951
Posted By bobxyz
If you want to poke around with the MS...

If you want to poke around with the MS capabilities, you can download the latest firmware and the lite (free) version of TunerStudio, then open up TunerStudio on you PC desktop and wander though the...
Forum: performance & modifications 07-08-2021, 11:01 PM
Replies: 397
Views: 61,315
Posted By bobxyz
That's a sensorless 3-phase motor. You want an...

That's a sensorless 3-phase motor. You want an ebay "brushless dc motor 3 phase hall", the hall sensor being the key difference. The hall sensors tell the motor controller chip what position the...
Forum: aftermarket engine management 07-08-2021, 09:00 AM
Replies: 16
Views: 3,951
Posted By bobxyz
The original MegaSquirt I firmware was written in...

The original MegaSquirt I firmware was written in assembly, but all the newer MSextra firmware is C code. In the past, the source code was released, but they may not be releasing it anymore due to...
Forum: maintenance & nonperformance 07-03-2021, 03:50 PM
Replies: 33
Views: 8,570
Posted By bobxyz
The 0332014114 relay is a real oddball and it's...

The 0332014114 relay is a real oddball and it's highly unlikely that anyone makes a replacement today. Easiest is to ask in wanted for good used, then swap it in and keep your original as a known...
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