it does the same thing with the stock tune. I will look into the ignition coil and icm.
it does the same thing with the stock tune. I will look into the ignition coil and icm.
never ever ever tune a stock car because it's not running well! 100% of the time, you are band-aiding something that's broken or worn, and it's 25 years old so definitely something is worn. and 50% of the time if you just installed headers, you torched a plug wire.
Not to mention stock LT1 fuel injectors are JUNK. They were never designed to handle ethanol. Buh-bye!
yeah, that's very true, the biggest input change is that when these engines were built and calibrated, fuel was a bit consistent, now you have some corn liquor mixed in there.
a percentage of initial enrichment to handle that is a good idea.
the stock injectors are pretty stout to say the least, though, don't see why 10% or less ethanol would hurt them much.
It's the fact that the windings are immersed in fuel. Yes, they were stout, until ethanol started eating them.
https://www.underhoodservice.com/tec...ow-technology/
Some LT1 injectors have had failure problems due to internal corrosion, which some have blamed on gasoline mixtures that contain 10% ethanol. The injector coils short out internally and cause a lean fuel condition and/or misfires in one or more cylinders. On 1996 and later OBD II models with misfire detection, this should set one or more P030X cylinder misfire codes depending on how many injectors are misbehaving.
Injector resistance can be tested with an ohmmeter, and should read 11.8 to 12.6 ohms. If the injector reads out of specs, it should be replaced.
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