Running Super Rich. Correct maf sensor??

abelbushey · 02-09-2021, 12:11 PM

Hey all. I recently finished up the turbo swap on my 92 240 wagon complete with a fresh bottom end, and t5 swap. Sense I did the swap I've had a pretty consistent rich condition (pegs the aem gauge at the minimum 8.49) and a hard shudder under acceleration. I've done a little reading and it seems I may have the incorrect maf for my setup. I have the 0280212016 maf that came off the car when it was Na. after some light reading it seems I need the 0280212007 out of a 1990s 740 turbo. Before I go and throw down some money to get one coming I figured it would be best to consults the pros and make sure the 007 maf will fix this issue.

I have the 3bar regulator and the orange injectors running around 15psi

gsellstr · 02-09-2021, 01:07 PM

The 016 in there is correct for your car. The 007 is an LH2.2 MAF and is not correct, also will not be from a 90's anything for Volvo.

Cwazywazy · 02-09-2021, 01:10 PM

Does it run rich cold? hot? always? I'd suspect bad MAF sensor or massive boost leak first.

abelbushey · 02-09-2021, 02:52 PM

I swapped out the ecu and timing box when I did the turbo swap with a 91 turbo 740. It is consistently rich. I have checked for boost leaks but haven't been able to find anything major. It seems to run a little better when the engine is cold but not much.

abelbushey · 02-09-2021, 02:53 PM

Quote:

Originally Posted by Cwazywazy

Does it run rich cold? hot? always? I'd suspect bad MAF sensor or massive boost leak first.

I have two other mafs that I have tried both are the 016 and have yield the same rich condition.

Cwazywazy · 02-09-2021, 03:02 PM

Quote:

Originally Posted by abelbushey

I swapped out the ecu and timing box when I did the turbo swap with a 91 turbo 740. It is consistently rich. I have checked for boost leaks but haven't been able to find anything major. It seems to run a little better when the engine is cold but not much.

You sure you used the right ecu? I believe the number on it should end in 563 or 937.

carver · 02-09-2021, 03:03 PM

Did you remove the the WOT wire on the TPS? Believe it's the blue and white wire on position 3.

abelbushey · 02-09-2021, 03:31 PM

Quote:

Originally Posted by carver

Did you remove the the WOT wire on the TPS? Believe it's the blue and white wire on position 3.

I did not! should I have done this? Do I just remove it from the plug/ cut it?

carver · 02-09-2021, 03:34 PM

Quote:

Originally Posted by abelbushey

I did not! should I have done this? Do I just remove it from the plug/ cut it?

For starters just remove it from the plug and see if it helps. If so terminate the sucker and drive.

abelbushey · 02-09-2021, 03:35 PM

I will go give that a try and grab the number off the ecu.

abelbushey · 02-09-2021, 03:40 PM

Quote:

Originally Posted by Cwazywazy

You sure you used the right ecu? I believe the number on it should end in 563 or 937.

It is a 560

abelbushey · 02-09-2021, 03:42 PM

Quote:

Originally Posted by Cwazywazy

You sure you used the right ecu? I believe the number on it should end in 563 or 937.

0260000560 is the code on the ecu

Cwazywazy · 02-09-2021, 03:51 PM

Quote:

Originally Posted by abelbushey

0260000560 is the code on the ecu

Google tells me that's a turbo ecu with egr. Should work (I think) but it might be unhappy with the lack of egr. Do the wot wire thing.

abelbushey · 02-09-2021, 03:51 PM

Quote:

Originally Posted by carver

For starters just remove it from the plug and see if it helps. If so terminate the sucker and drive.

Removed the wire and the rich condition and chugging remained unchanged.

abelbushey · 02-09-2021, 03:52 PM

Quote:

Originally Posted by Cwazywazy

Google tells me that's a turbo ecu with egr. Should work (I think) but it might be unhappy with the lack of egr. Do the wot wire thing.

In my bit of reading about that ecu, it should work but the cel will stay on.

culberro · 02-09-2021, 04:55 PM

Did you install high-z injectors or a resistor pack?

shoestring · 02-09-2021, 05:05 PM

Did you check for codes?

Dicktater · 02-09-2021, 05:20 PM

Quote:

Originally Posted by culberro

Did you install high-z injectors or a resistor pack?

He said it had a stock 016 amm and is a 92 so I assume lh2.4 which would have the resistor pack to match the injectors on the donor engine. Should be at least running the b230f/t green injectors.

Fa182 · 02-09-2021, 06:41 PM

Quote:

Originally Posted by Dicktater

He said it had a stock 016 amm and is a 92 so I assume lh2.4 which would have the resistor pack to match the injectors on the donor engine. Should be at least running the b230f/t green injectors.

The NA engines don't have a resistor pack? Unless I misread what you're saying.

Dicktater · 02-09-2021, 06:46 PM

Opps' thought all lh2.4 did, my mistake.....I'll shut up now

dl242gt · 02-09-2021, 07:08 PM

The chugging could be spark blowout from too large of a plug gap. Check your plugs and reduce the plug gap to .026". I'd also check the engine coolant temp sensor and make sure it's working. If that sensor is open circuit or too high a resistance it can make the engine run rich all the time because the engine will never go into closed loop operation.

abelbushey · 02-09-2021, 07:27 PM

Quote:

Originally Posted by Dicktater

He said it had a stock 016 amm and is a 92 so I assume lh2.4 which would have the resistor pack to match the injectors on the donor engine. Should be at least running the b230f/t green injectors.

I have a set of yellow/ cream injectors.

abelbushey · 02-09-2021, 07:28 PM

Quote:

Originally Posted by dl242gt

The chugging could be spark blowout from too large of a plug gap. Check your plugs and reduce the plug gap to .026". I'd also check the engine coolant temp sensor and make sure it's working. If that sensor is open circuit or too high a resistance it can make the engine run rich all the time because the engine will never go into closed loop operation.

Is this the same sensor that will send a signal to the gage?

culberro · 02-09-2021, 07:44 PM

Quote:

Originally Posted by abelbushey

I have a set of yellow/ cream injectors.

This is very informative....

culberro · 02-09-2021, 07:46 PM

Quote:

Originally Posted by abelbushey

Is this the same sensor that will send a signal to the gage?

Nope, but the sensor is near the gauge one. You're looking for a sensor under the intake that has an injector style connector on it. The body will be black plastic and brass.

02-09-2021, 12:11 PM	#1
abelbushey Board Member Join Date: Nov 2020	Running Super Rich. Correct maf sensor?? Hey all. I recently finished up the turbo swap on my 92 240 wagon complete with a fresh bottom end, and t5 swap. Sense I did the swap I've had a pretty consistent rich condition (pegs the aem gauge at the minimum 8.49) and a hard shudder under acceleration. I've done a little reading and it seems I may have the incorrect maf for my setup. I have the 0280212016 maf that came off the car when it was Na. after some light reading it seems I need the 0280212007 out of a 1990s 740 turbo. Before I go and throw down some money to get one coming I figured it would be best to consults the pros and make sure the 007 maf will fix this issue. I have the 3bar regulator and the orange injectors running around 15psi

02-09-2021, 01:07 PM	#2
gsellstr Vintage anti-ricer Join Date: Oct 2004 Location: Somewhere in a northern California smog bank	The 016 in there is correct for your car. The 007 is an LH2.2 MAF and is not correct, also will not be from a 90's anything for Volvo. __________________ RIP Doug Williams "Mr. Doug" 4/15/2009 Pete Fluitman "fivehundred" 7/14/2013 Mick Starkey "TrickMick" 1/10/14 Mark Baldwin "blue850t5" 7/19/18 Nick Fengler "fengler" 8/6/18 Thomas Fritz "stealthfti" 10/11/18 74 144 B20 http://forums.turbobricks.com/showthread.php?t=224983 90 745Ti http://forums.turbobricks.com/showthread.php?t=334698 If you need Superpro bushings PM me for price and availability!

02-09-2021, 01:10 PM	#3
Cwazywazy Single jingle Join Date: Aug 2016 Location: Granby CT	Does it run rich cold? hot? always? I'd suspect bad MAF sensor or massive boost leak first. __________________ I don't know what I have

02-09-2021, 04:55 PM	#16
culberro Ronald Culberbone III Join Date: Feb 2010 Location: Portland, OR	Did you install high-z injectors or a resistor pack? __________________ Cult Person. Pissing in your Kool-Aid.

02-09-2021, 05:05 PM	#17
shoestring Board Member Join Date: Jun 2009 Location: Swampscott, 01907	Did you check for codes? __________________ I AM THE MODAL AMERICAN. Planet money #936.

02-09-2021, 02:52 PM	#4
abelbushey Board Member Join Date: Nov 2020	I swapped out the ecu and timing box when I did the turbo swap with a 91 turbo 740. It is consistently rich. I have checked for boost leaks but haven't been able to find anything major. It seems to run a little better when the engine is cold but not much.

02-09-2021, 03:03 PM	#7
carver Redblock for life. Join Date: Apr 2011 Location: Seattle	Did you remove the the WOT wire on the TPS? Believe it's the blue and white wire on position 3.

02-09-2021, 03:35 PM	#10
abelbushey Board Member Join Date: Nov 2020	I will go give that a try and grab the number off the ecu.

02-09-2021, 06:46 PM	#20
Dicktater Cretin Join Date: Nov 2009 Location: Nunya	Opps' thought all lh2.4 did, my mistake.....I'll shut up now

02-09-2021, 07:08 PM	#21
dl242gt Happy playing the blues Join Date: Jun 2002 Location: S NJ, a suburb of Phila.	The chugging could be spark blowout from too large of a plug gap. Check your plugs and reduce the plug gap to .026". I'd also check the engine coolant temp sensor and make sure it's working. If that sensor is open circuit or too high a resistance it can make the engine run rich all the time because the engine will never go into closed loop operation. __________________ Dave, 1982 242 turbo. 338k miles. MVP coilovers and 3" exhaust. Flowed 405 with a V15. Cossie turbine housing with upgraded compressor housing. 90+, IPD remote oil filter. Some other goodness, too. Been lots of fun over 25 years. Restored in 2k. Now ready for a 2nd restoration. 1993 245 Classic, 430k miles, enem V15. IPD bars and chassis braces. Simons sport exhaust from Scandix. sbabbs ezk chip. Been a good road warrior. Genuine Volvo rebuilt leaky M47.

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