1991 Firebird V8 5.0 ECM location and does it need to be flashed?
10

Asked by Robert Mar 03, 2016 at 12:33 AM about the 1991 Pontiac Firebird Base

Question type: Maintenance & Repair

Hello, so I had a short somewhere and basically it ended up frying my
computer on my 1991 firebird. I was trying to figure out where the ECM is
located, and if I can just slap another one in there and be good to go? I know
newer cars have to be flashed over and what-not; but I'm not certain if my car
does; due to the age? Any help would be greatly appreciated.

1 Answer
26,835

taver91 answered 8 years ago

The ECM is located behind the knee panel of the dash on the passenger side. I hope you have fixed the "short" that caused the demise of the first unit before you plug in a new one. As for the "plug and play" question, I am not sure but I think you will be good to go with an ECM that matches your car's original. I also have 91 and so far I have not had an ECM issue to deal with so I have no direct knowledge. The seller should know if the "chip" in the ECM is for your engine and fuel system at a minimum since there were several options available for that year.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • 1991 Firebird V8 5.0 ECM location and does it need to be flashed? 1 Answer

    Hello, so I had a short somewhere and basically it ended up frying my computer on my 1991 firebird. I was trying to figure out where the ECM is located, and if I can just slap another one in there a...

    1991 Pontiac Firebird Base

    -

    Maintenance & Repair

  • No Injectior pulse 1991 firedbird 6 Answers

    I have a 1991 pontiac firebird .31. auto fuel injected .I get spark , fuel to the fuel rail . ecm tested good . I get power to all the injectors but no pulse ? I can spray it with fuel and it it s...

    1991 Pontiac Firebird Base

    -

    Maintenance & Repair

  • Is the oil pump for a 2000 firebird v6 and v8 the same? I can't seem to find one. 1 Answer

    I have a 2000 firebird and I'm replacing the motor so I want to go ahead and replace the oil pump. I have searched online and can't find an answer. Thanks

    2000 Pontiac Firebird Base

    -

    Maintenance & Repair

  • 1991 pontiac firebird will not turn over 5 Answers

    1991 pontiac firebird, 3.1 liter v6. auto trans.....the car wouldnt turn over..then it started working again for a few days, now it stopped and it wont turn over.

    1991 Pontiac Firebird Base

    -

    Maintenance & Repair

  • pontiac firebird ecm failure.why? 4 Answers

    hi guys. my 1983 5.o crossfire blew an ecm.until this point car was running fine.checked for obvious bare wires etc,found nothing.jumped terminals A+B can't extract a code [seems like it's that part o...

    1983 Pontiac Firebird

    -

    Maintenance & Repair

Shortcuts

Search Pontiac Firebird Questions

CarGurus Experts

  • #1
    Samuel Moore
    Reputation
    1,600
  • #2
    taver91
    Reputation
    1,340
  • #3
    Paul Martin
    Reputation
    1,280
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Camaro
16 Great Deals out of 307 listings starting at $10,500
Used Chevrolet Corvette
29 Great Deals out of 1,060 listings starting at $15,871
Used Ford Mustang
65 Great Deals out of 1,259 listings starting at $4,995
Used Pontiac Grand Prix
2 listings
Used Ford F-150
321 Great Deals out of 14,968 listings starting at $1,712
Used Porsche 911
12 Great Deals out of 322 listings starting at $21,888

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.