87 fiero won't idle

Asked by justin123j Jan 29, 2020 at 02:03 PM about the 1987 Pontiac Fiero SE

Question type: Maintenance & Repair

87 2.8 liter I have replaced the
fuel pump and fuel filter the
distributor cap rotor wires map
sensor O2 sensor pressure
regulator and it still won't idle
when you start it up it runs like 2
seconds sounds great then dies if
I hit the throttle it dies quicker

2 Answers
27,650

oilyspill answered 4 years ago

Any applicable trouble codes? I'd want to check if system is running rich or lean? Right now, I think the system is running lean, I could be wrong? The basics for a rough idle, check for a leak of some kind, fuel egr vacuum.

Mark helpful

justin123j answered 4 years ago

No vacuum leaks whatsoever the new EGR gasket tubes cleaned the only thing that is is not hooked up is the cruise controlstarts up books about 1,500 comes right back down ties soon as I have to start over completely dies immediately

Mark helpful

Your Answer:

Related Questions

  • 87 fiero won't idle 2 Answers

    87 2.8 liter I have replaced the fuel pump and fuel filter the distributor cap rotor wires map sensor O2 sensor pressure regulator and it still won't idle when you start it up it runs like 2 sec...

    1987 Pontiac Fiero SE

    -

    Maintenance & Repair

  • Fiero A/C Idle Problem 2 Answers

    I own an 88 Formula, manual. Right when I turn on my compressor sometimes it drops my idle so low it kills the car. This happens usually when I turn on the compressor right when I turn the car on, b...

    1988 Pontiac Fiero Formula

    -

    Maintenance & Repair

  • High Idle 3 Answers

    My fiero developed a high idle problem, idle near 3k, I have checked for vacumn leaks, throddle body is ok and have replaced the throddle position sensor, any help would be appreciated....thanks

    1985 Pontiac Fiero GT

    -

    Maintenance & Repair

  • Replacing Fiero sub-frame 1 Answer

    86 Fiero 4 cylinder. Can a used sub frame from any year Fiero fit my 86?

    1986 Pontiac Fiero GT

    -

    Maintenance & Repair

  • Start/Idle 4 Answers

    88 Fiero 4cyl. Sometimes it acts like maybe it is flooded. Wont start. Wait about an hour and it starts but idle bounces between 500-1500 rpm for a minute then smooths out. Has a new IAC and fuel ...

    1988 Pontiac Fiero Base

    -

    Maintenance & Repair

Shortcuts

Search Pontiac Fiero Questions

CarGurus Experts

  • #1
    THORNY68
    Reputation
    1,100
  • #2
    Steve Neyens
    Reputation
    610
  • #3
    Andrew Welsh
    Reputation
    520
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Pontiac Firebird
13 listings
Used Ford Mustang
57 Great Deals out of 1,352 listings starting at $4,995

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.