They are hard to find....Originally Posted by liquidroam
They are hard to find....
Touche
Were the dead cylinder's exhaust tubes getting hot? I've been fooled by the injector test before.
Disassemble the whole intake path, I had a MAF clogged with rubber at cresson. How are the O2 sensors? Maybe lost a sensor and is in limp mode?
Skipped timing chain??
Last edited by Sook; 06-22-2018 at 03:19 PM.
CMC #50
The LT1 beat me last year. Once they start acting up it's hard to figure out the problem (within CMC rules). I was always finding broken things but they would never solve the problem.
CMC #50
Lift the Fuel rail above the intake with the injectors and lines still attached, disconnect the coil connector (the control/thin wires, not the plug wire) to stop spark, and see if all of your injectors are spraying correctly while cranking the motor over with the ignition on. Keep all ignition sources away from the engine bay so put the vape and cigarettes away and make sure all of your spark plug wires are still connected with the coil disabled by disconnecting small low voltage connector.
If you see an injector that is not firing, it is either clogged or not getting a signal to fire; swap it to another position to verify the issue.
Autozone also has a Noid light set on loan a tool that you can plug into each injector connector to verify it is getting voltage to the injector (can't check with a voltmeter because it is a PWM signal).
I know clogged injectors were an issue for you in the past from your donor motor, but if you used the old/donor fuel rail with your good injectors from your original motor, the old fuel rail WILL shed varnish and clog up the good injectors.
All post-filter fuel injector/rail/hose parts need to be cleaned if they came off a non running car. This was an issue for me in the past as I even did my injectors and rail, but the supply hose kept shedding varnish and clogging my injectors.
Last edited by Pranav; 06-22-2018 at 03:29 PM.
Ya, good call on the fuel rail. Man that just sounds like an accident waiting to happen. Lol.....
Lol you can take some baggies or something and cover up the injectors so the fuel doesnt go everywhere.
Ah great now I am building a weak compression chamber. Boom!!! See ya'll on the other side.
Pranav clear your inbox, it won't let me PM you.
Below is what I was trying to send
Do you have someone that you know and trust for cleaning injectors/ fuel rails?
I have found a ton of people that do and most are $17 -$19 a piece. Not bad high or low but it feals like a reasonable ball park.
Last edited by liquidroam; 07-09-2018 at 08:31 AM.
Got it... ya there may be a sensor issue. I am hoping codes can point me in the right direction. If that is the case. I did not even think about the timing chain but that could make sense.
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