Injector Problem
Thread Starter
Staging Lane
Joined: Oct 2004
Posts: 57
Likes: 0
From: England UK
Injector Problem I am having a problem getting the injectors on my LS6 to pulse, and hence no fuel is getting into the engine.
I have checked the throttle position sensor, crankshaft sensor and camshaft sensor.
I have also checked the VATs module which is getting a signal.
What else can I check??
I have checked the throttle position sensor, crankshaft sensor and camshaft sensor.
I have also checked the VATs module which is getting a signal.
What else can I check??
Pretty simple troubleshooting path, it either doesn't have 12VDC at the injectors or the PCM isn't switching them.
First, ensure you have 12VDC at the injectors. Probe one injector connector on each bank to ground and report back.
First, ensure you have 12VDC at the injectors. Probe one injector connector on each bank to ground and report back.
then the next step is to get whats called a noid light.
its a little light that plugs in place of the injector. autozone rents them for free, or you can buy one cheap at your local parts store.
have someone crank the car, and watch the light. if it flicks on and off, then you are getting a injector signal, and your problem lies in the injectors sticking, or no fuel pressure.
if you are not getting a signal, then you can start backtracking from there.
its a little light that plugs in place of the injector. autozone rents them for free, or you can buy one cheap at your local parts store.
have someone crank the car, and watch the light. if it flicks on and off, then you are getting a injector signal, and your problem lies in the injectors sticking, or no fuel pressure.
if you are not getting a signal, then you can start backtracking from there.
like he said, hook up a scan tool, or something like HPtuners and see what it says.
the first thing you're looking for is if it sees the engine turning over (RPM) and if it does, then you're looking to see if its trying to pulse the injectors.
if you have HPtuners, or some other tuning software, make sure VATS is turned off.
the first thing you're looking for is if it sees the engine turning over (RPM) and if it does, then you're looking to see if its trying to pulse the injectors.
if you have HPtuners, or some other tuning software, make sure VATS is turned off.
