'92 GTZ might need new ECM. Please help diagnose.

Have a flashing light? Gauges acting funny? Bad idle? Get your problems solved...
jjaquu
Registered User
Posts: 2
Joined: Sun Dec 21, 2014 11:08 pm

'92 GTZ might need new ECM. Please help diagnose.

Postby jjaquu » Sun Dec 21, 2014 11:20 pm

I bought a Beretta recently but I have had some problems. Over heating was caused by the fan not turning on, so I routed it directly to the battery and it still works. I failed emissions and the check engine light is on constantly. I've been doing some research and most signs point to my ECM. Now, obviously, them's is expensive, so I wanted to know: Is it in fact my ECM? And if so: Can I perform other actions to reset or reprogram it before resorting to total replacement?

Thanks! -Jake



User avatar
ronaconda
Registered User
Posts: 688
Joined: Sun Mar 23, 2008 7:30 pm
Location: Salt Lake City, UT
Has thanked: 1 time
Been thanked: 4 times

Re: '92 GTZ might need new ECM. Please help diagnose.

Postby ronaconda » Mon Dec 22, 2014 2:27 pm

Have you pulled the trouble codes from the ECM???



User avatar
woody90gtz
Registered User
Posts: 4032
Joined: Thu Jul 11, 2002 8:45 pm
Location: Walton, NY
Has thanked: 4 times
Been thanked: 7 times
Contact:

Re: '92 GTZ might need new ECM. Please help diagnose.

Postby woody90gtz » Mon Dec 22, 2014 9:33 pm

I have never had an ECM fail that would even run the car. I've had two dead ECMs, and both killed the engine instantly like turning off a swtich. Attempted restart would just crank the starter without a hint of refiring.


Image
91 "SS" 3400/5spd - EP, FFP, TCE, SPEC, DSS, S&S, OBD1, 13s? GEARHEAD dezign

User avatar
Asylum
Registered User
Posts: 3022
Joined: Wed Mar 31, 2004 9:36 am
Location: Hamilton, Ontario, Canada
Has thanked: 5 times
Been thanked: 3 times
Contact:

Re: '92 GTZ might need new ECM. Please help diagnose.

Postby Asylum » Mon Dec 22, 2014 10:13 pm

I agree with Woody in that it is very unlikely to be the ECM.

Hell re-wiring the fan could trigger an engine light. It often doesn't take much.

Check the codes with a paper clip and go from there.


Eric

Asylum Motorsports
"Where we're not happy 'til YOU'RE not happy!






'91 California Quad
'92 3500 GT gone and not really missed. It was fun. Documented 13.47 N/A.

User avatar
Cliff8928
Administrator
Posts: 1772
Joined: Wed Mar 03, 2004 10:03 pm
Location: Long Grove, IL
Has thanked: 8 times
Been thanked: 10 times
Contact:

Re: '92 GTZ might need new ECM. Please help diagnose.

Postby Cliff8928 » Sat Jan 10, 2015 3:14 am

woody90gtz wrote:I have never had an ECM fail that would even run the car. I've had two dead ECMs, and both killed the engine instantly like turning off a swtich. Attempted restart would just crank the starter without a hint of refiring.


FWIW- My '7730 would cut out with any throttle input (idle was fine). I would reach over, tap on the ECM and it would be back to normal for a while. So they can fail and still run.


Cliff Scott
Image


Return to “Diagnostic Help”

Who is online

Users browsing this forum: No registered users and 6 guests