Car disappointed on the dyno and now throwing P0300?
11-08-2011, 05:59 PM
#1
TECH Enthusiast
Thread Starter
Car disappointed on the dyno and now throwing P0300? Well after a disappointing day at the dyno, my car is now throwing P0300, what could cause this? I changed the plugs when I did the heads, but not the wires. My tuner told me to change plug wires as they were old and O2 sensors as he said they were "tired". Not sure what that means... Do I have a problem or is it the cam?
11-08-2011, 06:07 PM
#2
Well after a disappointing day at the dyno, my car is now throwing P0300, what could cause this? I changed the plugs when I did the heads, but not the wires. My tuner told me to change plug wires as they were old and O2 sensors as he said they were "tired". Not sure what that means... Do I have a problem or is it the cam?
11-08-2011, 06:34 PM
#3
TECH Enthusiast
Thread Starter
I just quickly changed the wires, found two of them slid right off, now the car runs much smoother.... Pretty sure I found the issue
Dyno graph is below,
Dyno graph is below,
11-12-2011, 03:43 PM
#5
TECH Enthusiast
Thread Starter
there was a vacuum leak. I can't believe the tuner didn't catch it, I paid 800 for the tune and totally feel ripped off. Ive corrected the issues but I bet my money went to waste. I'll be buying an hp tuners and learning to do it on my own now...
