Optispark
Thread Starter
Heel & Toe
Joined: Nov 2018
Posts: 17
Likes: 0
Optispark
new here not sure how to use the forum but I have a 95 that’s been eating my lunch for about 4 months now i hear a static noise coming from somewhere but can’t seem to locate it put my hand on the Opti can could’ve feel some voltage coming off, the car will crank and run for about 4 seconds no longer I’ve had ecm rebuilt bcm rebuilt fuel filter and pump change injectors and it doesn’t sound like the proper start up , in the morning it has a very hard start up takes forever to finally catch but will still shut off after a few seconds .could anybody confirm what’s going on here. Ps I pulled the Opti today and found this on the inside as if it’s burnt out it’s like that on each post
Last edited by 95’er; Nov 6, 2018 at 03:53 PM. Reason: Full
Melting Slicks
Joined: Oct 2016
Posts: 2,024
Likes: 363
From: Central Alabama
Assuming you meant the filter sock on the fuel pump, you also have an inline filter on the right frame rail.
The fuel regulator on the right hand fuel rail assy could be bad. That's why a fuel pressure test is important.
A couple questions that might help
Mileage?
Are the plug wires original? Original wires are numbered most others are not.
Did this just start or did you buy the car with the problem?
The fuel regulator on the right hand fuel rail assy could be bad. That's why a fuel pressure test is important.
A couple questions that might help
Mileage?
Are the plug wires original? Original wires are numbered most others are not.
Did this just start or did you buy the car with the problem?
Thread Starter
Heel & Toe
Joined: Nov 2018
Posts: 17
Likes: 0
Assuming you meant the filter sock on the fuel pump, you also have an inline filter on the right frame rail.
The fuel regulator on the right hand fuel rail assy could be bad. That's why a fuel pressure test is important.
A couple questions that might help
Mileage?
Are the plug wires original? Original wires are numbered most others are not.
Did this just start or did you buy the car with the problem?
The fuel regulator on the right hand fuel rail assy could be bad. That's why a fuel pressure test is important.
A couple questions that might help
Mileage?
Are the plug wires original? Original wires are numbered most others are not.
Did this just start or did you buy the car with the problem?
Race Director
Joined: Oct 2011
Posts: 16,097
Likes: 821
From: Dallas Texas
2025 C4 of the Year Finalist - Modified
OP, do you know how to scan codes? You don't need a code reader to read codes on these cars.
Next, get an SBC/LT1 noid light.
I am only saying this since you say fuel pressure is fine.
Next, get an SBC/LT1 noid light.
I am only saying this since you say fuel pressure is fine.
Last edited by 1993C4LT1; Nov 6, 2018 at 06:09 PM.
Burning Brakes
Joined: Feb 2013
Posts: 769
Likes: 95
From: Central Pennsylvania
ive actually changed both filter and the sock but I bought car and it ran fine for a while one night I was gunning it and outta nowhere it just killed as if I cut the key back but all power was on everything was still lit up and would crank but wouldn’t start let it cool down fired right up , it did that for about two weeks now all I get is a hard start and die , no I don’t have original wires on it I picked up a set from summit racing here in Texas but I’ve done a fuel pressure test fuel pressure leak down test system holds fine I hear static coming from the Opti thought like I say I put my fingers on the front of the Opti myself had a friend crank the car and I felt a voltage coming from it not sure if that’s normal but I doubht it
Thread Starter
Heel & Toe
Joined: Nov 2018
Posts: 17
Likes: 0
which I got rebuilt still same issue but I know for sure I hear the static and felt it on front of Opti when was on the car
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Racer
Joined: Jul 2017
Posts: 422
Likes: 53
From: PA
new here not sure how to use the forum but I have a 95 that’s been eating my lunch for about 4 months now i hear a static noise coming from somewhere but can’t seem to locate it put my hand on the Opti can could’ve feel some voltage coming off, the car will crank and run for about 4 seconds no longer I’ve had ecm rebuilt bcm rebuilt fuel filter and pump change injectors and it doesn’t sound like the proper start up , in the morning it has a very hard start up takes forever to finally catch but will still shut off after a few seconds .could anybody confirm what’s going on here. Ps I pulled the Opti today and found this on the inside as if it’s burnt out it’s like that on each post