Volvo 240 B230FT swap - Cant start with original ecu

frederikm · 07-10-2018, 11:45 AM

Hey! I swapped a B230FT into a Volvo 240 (LH2.4) from '92. The B230FT is from '98. I have the ECU (984) and EZK (148) from the car with the B230FT. Problem is, it wont open the injectors, and i have tried with other 984's and even a 976 ECU. Still the same.. But i can start the car, and run it without any trouble with the original ECU and EZK from a B200F, which was in the Volvo 240 before the swap. The injectors are from a 850 turbo (315CC, high ohms).

Do you guys have any idea what the problem could be?

BR

PromiseRing · 07-10-2018, 12:20 PM

When you have the 850 turbo injectors in there, did you bypass the resistor pack?

I would imagine you never actually even installed the resistor pack since it was a swap. Have you checked for injector pulse with a noid light while having the FT computers installed? Injectors have power and are grounded to open when LH gets an RPM signal from the crank sensor.

You could try starting fluid with the FT computers to confirm that it's a fuel issue.

Being that it's from a 98, is there any chance it's security system related? Just curious, I have never seen a 940T that new here in the states. Didn't know if maybe there was some kind of lockout built in.

http://forums.turbobricks.com/showthread.php?t=292087 ..............

OttoB · 07-10-2018, 12:53 PM

Jåå det är aktiverad startspärr.

Change chip or box to 962 or 954. Those doesn't have this dsmned feature.

frederikm · 07-10-2018, 12:58 PM

I Know it is with immobilizer (984), but the 976 is without immobilizer . And i can confirm that the injectors wont open, since i have had the fuel rail with injectors pulled out to see if they spray. And the ballast res. Is not installed at all.

PromiseRing · 07-10-2018, 01:22 PM

Quote:

Originally Posted by frederikm

I Know it is with immobilizer (984), but the 976 is without immobilizer . And i can confirm that the injectors wont open, since i have had the fuel rail with injectors pulled out to see if they spray. And the ballast res. Is not installed at all.

When you had the rail off to test, did you make sure to keep it well grounded? The grounds on the rail are the ecu grounds (and therefore the injector grounds).

I would swap to an older ecu like 954 and 937 and see what happens. Unless there’s a way to bypass the immobilizer.

sbabbs · 07-10-2018, 02:05 PM

You can use the 984 ECU if you put a 937 or 954 or 967 ECU chip in it or aftermarket tuned chip. That will bypass the immobilizer.

Your problem is you need an ECU that works......

07-10-2018, 11:45 AM	#1
frederikm Newbie Join Date: Jul 2015 Location: Denmark	Volvo 240 B230FT swap - Cant start with original ecu Hey! I swapped a B230FT into a Volvo 240 (LH2.4) from '92. The B230FT is from '98. I have the ECU (984) and EZK (148) from the car with the B230FT. Problem is, it wont open the injectors, and i have tried with other 984's and even a 976 ECU. Still the same.. But i can start the car, and run it without any trouble with the original ECU and EZK from a B200F, which was in the Volvo 240 before the swap. The injectors are from a 850 turbo (315CC, high ohms). Do you guys have any idea what the problem could be? BR

07-10-2018, 12:20 PM	#2
PromiseRing We don't even like Volvos Join Date: Feb 2014 Location: Missouri	When you have the 850 turbo injectors in there, did you bypass the resistor pack? I would imagine you never actually even installed the resistor pack since it was a swap. Have you checked for injector pulse with a noid light while having the FT computers installed? Injectors have power and are grounded to open when LH gets an RPM signal from the crank sensor. You could try starting fluid with the FT computers to confirm that it's a fuel issue. Being that it's from a 98, is there any chance it's security system related? Just curious, I have never seen a 940T that new here in the states. Didn't know if maybe there was some kind of lockout built in. http://forums.turbobricks.com/showthread.php?t=292087 .............. __________________ Feedback Thread Current: 93' 244 m47 93' 245 m47 90' 744 AW70 94' M-Edition Miata 95' Camry auto Past: 80' 242gt m46 88' 245 m47 92' 940 turbo AW17 If you stop and think about it, it’s literally not worth your time to get on TBOT every day and argue about politics. Last edited by PromiseRing; 07-10-2018 at 12:28 PM..

07-10-2018, 02:05 PM	#6
sbabbs Board Member Join Date: Dec 2006 Location: Rushing Lane, Scappoose, OR	You can use the 984 ECU if you put a 937 or 954 or 967 ECU chip in it or aftermarket tuned chip. That will bypass the immobilizer. Your problem is you need an ECU that works...... __________________ 1988 245 White slicktop M47 Wagon! 2.5L NA 8v going in. 1990 745 B230FT Getrag JohnV flywheel 240mm clutch 13c A-cam 3.54 G80 548K MILES 1991 740SE B230FT NPR Strut braces IPD bar A cam 550cc EV14's. 3.73 G80 M90 to put in.

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07-10-2018, 12:53 PM	#3
OttoB Board Member Join Date: Aug 2006 Location: E(Seattle!Vancouver! San Francisco!LA!) Helsinski	Jåå det är aktiverad startspärr. Change chip or box to 962 or 954. Those doesn't have this dsmned feature.

07-10-2018, 12:58 PM	#4
frederikm Newbie Join Date: Jul 2015 Location: Denmark	I Know it is with immobilizer (984), but the 976 is without immobilizer . And i can confirm that the injectors wont open, since i have had the fuel rail with injectors pulled out to see if they spray. And the ballast res. Is not installed at all.