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misfire and low compression

Posted: Sat Jan 09, 2016 7:11 pm
by platinumstar17
I have a problem where my altezza is misfiring at idle. I thought it might have been a ignition coil but it's not that. Timing everything is correct. when I did a compression test I am getting 165 psi but on one cylinder I'm getting only 90psi. The car does not knock or anything. What can the problem be? I'm guessing the head will have to come off to see. other problems is sometimes when I'm driving the car will lose all throttle response and sometimes even shut off, but that happens very rarely

Re: misfire and low compression

Posted: Mon Jan 11, 2016 1:37 pm
by RS Tom-Hundred
Hmmm that doesn't sound good for that cylinder! Possibly piston rings then maybe?