krayzie7th

My friends car is running like crap but it starts up fine but at soon as it gets warm it starts running like crap. Its got a new opti and also a new o2 sensors. Once it gets warm it starts misfiring and we already changed the plugs and wires. Any ideas?

saint_fan77

my car does the same

krayzie7th

yea and we are stump on what it can be, all it shows is that it got's a random misfire.

the_merv

iTrader: (88)

Could possibly have burnt a Valve.. does it mis-fire throughout the powerband?

krayzie7th

I believe it does mis fire through out the power band.

the_merv

iTrader: (88)

If it does then I would lean toward a burnt Valve.. it sounds like it.

krayzie7th

uhm well that sucks..lol, is there any test we can do to find out? maybe a compression test?

saint_fan77

yea how can i find out and is it hard to change