engine will not fire
Thread Starter
Navigator
Joined: Apr 2015
Posts: 9
Likes: 0
engine will not fire
I'm at a lost: I have spark(brand new distributor), 40psi at fuel rail, no error codes. Engine turns over but no fire. Also replaced the ECM. I would think this should do it, but no no fire. What else could keep the injectors from firing?
Race Director
Joined: Mar 2015
Posts: 15,926
Likes: 579
Melting Slicks
Joined: May 2014
Posts: 2,895
Likes: 592
From: New Port Richey FL
now have you made sure that all connectors are plugged in, like the harness that supplies injector pulse. if so does your new Distributor give the Injector pulse? test for Inj. Pulse, even the basic Hays/Chilton repair manual has these procedure. retrace your steps. Verify all parts were installed when Distributor was assembled weather you did it or Manufacturer, and if you do not have one already get a Factory Repair Manual it can be the most valuable tool in the box. so when the Forum gives a page and a Guide you can follow first hand and follow.
After rereading your post you said you replaced the ECM did you bring over the E-PROM inside the old ECM?
No Prom No Fun
Last edited by s carter; Apr 5, 2015 at 09:24 PM.
Thread Starter
Navigator
Joined: Apr 2015
Posts: 9
Likes: 0
If I'm reading you rite you just put in a new Distributor, your confident that it is properly dropped in/Timed. I am ASSUMING by the odds of numbers built you have a L-98 Tune Port. when posting supply a year please.
now have you made sure that all connectors are plugged in, like the harness that supplies injector pulse. if so does your new Distributor give the Injector pulse? test for Inj. Pulse, even the basic Hays/Chilton repair manual has these procedure. retrace your steps. Verify all parts were installed when Distributor was assembled weather you did it or Manufacturer, and if you do not have one already get a Factory Repair Manual it can be the most valuable tool in the box. so when the Forum gives a page and a Guide you can follow first hand and follow.
After rereading your post you said you replaced the ECM did you bring over the E-PROM inside the old ECM?
No Prom No Fun
now have you made sure that all connectors are plugged in, like the harness that supplies injector pulse. if so does your new Distributor give the Injector pulse? test for Inj. Pulse, even the basic Hays/Chilton repair manual has these procedure. retrace your steps. Verify all parts were installed when Distributor was assembled weather you did it or Manufacturer, and if you do not have one already get a Factory Repair Manual it can be the most valuable tool in the box. so when the Forum gives a page and a Guide you can follow first hand and follow.
After rereading your post you said you replaced the ECM did you bring over the E-PROM inside the old ECM?
No Prom No Fun
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Drifting
Joined: Feb 2008
Posts: 1,537
Likes: 178
From: NE Ohio
2024 C4 of the Year Finalist - Unmodified
If you are 180* out on timing it will look Ok but not be firing on the compression stroke. Make sure you are on the compression stroke on # 1 and set the distributor for #1 wire.
Melting Slicks
Joined: May 2014
Posts: 2,895
Likes: 592
From: New Port Richey FL
while we wait to hear back on the if there is a Lack of Injector pulse. You said you have Fuel pressure but this is a bit of a long shot, I have seen cars with enough water in the fuel tank to keep the car from running. So if you can get a sample from the rail and see if there is water in the gas might help.
If your wondering how a car can get that much water just plug up the Bib around the filler neck, or tick someone off.