fuel injector pulse signal

whichwrench1
0

Asked by whichwrench1 Feb 24, 2010 at 12:21 PM about the 1991 Chevrolet Corvette Convertible

Question type: Maintenance & Repair

got a '91 tuned port.had sat for 7 years.replaced the fuel pump and filter,ign.module and ecm.cranks and dies.fuel pressure and spark are fine but injector pulse fades away.checked all ecm power and grounds.sent to dealer,they are lost and just running up my bill.injector maintains 12vdc at all times key is on.tried a third ecm for gp but to no avail.what could cause the injector pulse to fade away?both sets do the same.will stay running when sprayed in the throttle body.im confused and have been doing this most my life!thanks for any input.

1 Answer

Marcel Caissie
10

Pressure to high injector won't open

Your Answer

Add photo

Related Questions

  • replaced fuel pump and relay under dash of 92 corvette starts but will not run long any ideas? 2 answers

    had turn signal switch but after picking up car ran fine to house but now starts when cold but will not idle for long (about 30 seconds and then will not start till cooled down

    1992 Chevrolet Corvette Convertible

    -

    Maintenance & Repair

  • CAR OVERHEATING PROBLEM FOR A 1995 CORVETTE!!! HELP! PLEASE 2 answers

    When running w/ the air off, neither fans run, causing the motor to overheat. with the air on, both fans run, and the temp is normal. fuses is good, i have taken the car to 2 places, neither can fin...

    1995 Chevrolet Corvette Coupe

    -

    Maintenance & Repair

  • Headlight dimmer switch 2 answers

    My 96 corvette coupe high beams will not come on. The turn signal arm just moves back and forth easily, everything else works, wipers, turn signals, and cruise. I unscrewed the tilt handle and removed...

    1996 Chevrolet Corvette Coupe

    -

    Maintenance & Repair

  • Why do the rpms drop when a/c is on? Engine also dies. 2 answers

    I can turn on my a/c when engine is on and the r.p.m. guage goes down to 5 and below. The engine also dies if not warmed up with the a/c on. Can you pinpoint the problem? I also have electrical pro...

    2001 Chevrolet Corvette Coupe

    -

    Maintenance & Repair

  • no fuel tout of injectors 5 answers

    replaced fuel pump fuel reg spider injectors vcm still will notspray i have power to one side of i njectors do not know if i need it to pulse or have constant power i have fuel pressure 60ps at rail d...

    Chevrolet Chevy Van

    -

    Maintenance & Repair

Search Chevrolet Corvette Questions

Chevrolet Corvette Experts

#1 carGrrl
carGrrl
Reputation 880
#2 Tom Demyan
Tom Demyan
Reputation 760
#3 califcarson
califcarson
Reputation 560
View All

Related Models For Sale

Used Chevrolet Camaro"
594 Great Deals out of 29,044 listings starting at $1,795
Used Ford Mustang"
1,070 Great Deals out of 26,176 listings starting at $1,329
Used Porsche 911"
132 Great Deals out of 3,351 listings starting at $12,995
Used Dodge Viper"
7 Great Deals out of 253 listings starting at $17,998
Used BMW 3 Series"
1,215 Great Deals out of 37,862 listings starting at $1,200
Used BMW M3"
92 Great Deals out of 1,376 listings starting at $4,990
Used Jeep Wrangler"
999 Great Deals out of 45,865 listings starting at $1,800

Used Cars For Sale

2014 Chevrolet Corvette For Sale
23 Great Deals out of 1,459 listings starting at $51,995
2013 Chevrolet Corvette For Sale
15 Great Deals out of 376 listings starting at $31,999
2012 Chevrolet Corvette For Sale
13 Great Deals out of 282 listings starting at $29,998
2011 Chevrolet Corvette For Sale
15 Great Deals out of 310 listings starting at $25,995