Starting issues
#1
Starting issues
Just finished a full hi performance build on my 93 z28 lt1. First startup broke the cam in but car was idling erratically and found that 2 plugs on distributor on backwards. Than i started it and let run 4 a bit and cant get 2 start again its running way 2 rich. I had new 36lb injector in so i put the stock 22lbs bak on and took all the plugs out cuz they were flooded and burnt but even when i put bak in it almost fired up. Wtf is goin on help pls?
#4
No i dont have any sort of tune. It started up and ran tho with my 36lb injectors and than the next day i started it up and it didnt run long b4 it wouldnt start again. Is the computer overloaded or sumthing or is it mechanical?
#6
TECH Senior Member
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You can't simply swap injectors without programming the PCM. Running those 36# injectors will dump 35% more fuel than what the PCM is thinking, which can do some serious engine damage by washing down the cylinder walls. Stop trying to run the motor UNTIL YOU GET A PCM TUNE. I recommend www.pcmforless.com.
Also there's no break-in for a hydraulic roller cam. Fire it up and go.
Also there's no break-in for a hydraulic roller cam. Fire it up and go.
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#9
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The tune will help your car run period. Think of the tune/pcm as the brain of your car and the engine as the heart; the pcm is going to tell the heart what to do not the other way around!
#11
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by the way if you have a 93 you don't have to send your PCM off, they will just send you a chip to piggyback the PCM. While you are waiting you may want to pick up a dattalog software and a cable to start reading and scanning your car, so you can get a close to spot on tune.