228r LS1 problems HELP ME PLEASE!!
12-01-2015, 08:51 AM
#26
This problem started on the way home from the dyno.
The code that it throws is a P0300, and i've seen a P0301. random misfire and cylinder 1 misfire.
It doesnt stumble at all when i unplug the map sensor, is that because it looks at different fuel tables?
i dont want to take it back to the dyno and complain about their tune job when they fix it with a sensor.
But i'm almost convinced it has to be something in the tune.
The code that it throws is a P0300, and i've seen a P0301. random misfire and cylinder 1 misfire.
It doesnt stumble at all when i unplug the map sensor, is that because it looks at different fuel tables?
i dont want to take it back to the dyno and complain about their tune job when they fix it with a sensor.
But i'm almost convinced it has to be something in the tune.
12-01-2015, 09:55 AM
#27
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i've posted this before, after my cam install my car ran in limp mode now i dont remember any misfires but check the sensor on the back of the intake. theres a teeny tiny wire that breaks easy running to the computer that cost me $100 to diagnose & fix.
12-01-2015, 05:16 PM
#29
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I'm 99% sure the MAP sensor is good, and I may take it to them and they say the map sensor is bad and charge me 100 bucks for labor and then i'll have to spend 80 bucks on the MAP anyway but at least it would be fixed. If it turns out being something else the 80 that I'd spend on the MAP just guessing is thrown away. I've already done that with the MAF and TPS. But I agree with you man something is weird with it. I just want it to be fixed and I'm tired of messing with it.
12-01-2015, 05:18 PM
#30
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Did yours throw a code for the wire being broken?
12-01-2015, 05:26 PM
#31
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UPDATE:
The "chugging" right after start-up when it goes into closed loop has stopped. the only thing I've changed recently was swapping around 02 sensors. I'm so glad that it doesn't do this anymore, its such a heartbreak when your car has no power! But it still stumbles pretty bad so I'm still going to have it looked at. Its just weird because when I checked the 02 sensors they were reading 1.105v KOEO and right after I started it, all the way until it went into closed loop and then after blipping the throttle a couple times they would start switching normally.
guess I'll just be happy that its not doing it anymore.
The "chugging" right after start-up when it goes into closed loop has stopped. the only thing I've changed recently was swapping around 02 sensors. I'm so glad that it doesn't do this anymore, its such a heartbreak when your car has no power! But it still stumbles pretty bad so I'm still going to have it looked at. Its just weird because when I checked the 02 sensors they were reading 1.105v KOEO and right after I started it, all the way until it went into closed loop and then after blipping the throttle a couple times they would start switching normally.
guess I'll just be happy that its not doing it anymore.