have no spray at TBI need to know what to check

Asked by GuruX5M8P Oct 07, 2018 at 12:46 PM about the 1991 Pontiac Firebird Base

Question type: Maintenance & Repair

3 Answers

9,730

Check to see if you can hear the fuel pump run when you turn the switch on it will run for a few seconds then turn off, You may have to have someone turn the switch on as you listen at the fuel filler. If thats OK unplug the injectors put a test light between the terminals and crank the engine, the light should flash.

car will run when operating tbi with a 9 volt battery , so what do I check or possible reasons other than computer ?

9,730

Welcome back. Did you check to see if there is battery positive at the injector connection? The other terminal in that connector goes to the ECM that turns the injector on abd off, do the test lite check described above.

Your Answer:

Firebird

Looking for a Used Firebird in your area?

CarGurus has 15 nationwide Firebird listings and the tools to find you a great deal.

Postal Code:

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 Porsche 911
12 Great Deals out of 322 listings starting at $21,888
Used Ford F-150
321 Great Deals out of 14,968 listings starting at $1,712
Used BMW M3
8 Great Deals out of 90 listings starting at $15,995

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.