[Z06] No Powa!
Thread Starter
Instructor
Joined: Mar 2006
Posts: 156
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From: Jacksonville Florida
No Powa!
Just bought an 02 Z06 last month, knew it had a few issues but Ive been working them out. The car seemed like it has had full power up until the last few weeks its been really down on power and revs increase very slowly when accelerating. The only codes are for the rear O2 sensors which have been on since I bought it. I cleaned the MAF and checked for vacuum leaks on the intake tube but that didn't help anything. Any ideas on what could cause this?
Thread Starter
Instructor
Joined: Mar 2006
Posts: 156
Likes: 0
From: Jacksonville Florida
These are both things I was considering. Yesterday I dropped the H pipe and replaced the fuel filter with an AC Delco unit. Is there anyone who makes a bolt in offroad H or X for these? All Ive seen is the Magnaflow piece that I think you have to cut the factory H portion off and reuse. I guess theres not much of a way to visually check the cats without cutting the H pipe?
Thread Starter
Instructor
Joined: Mar 2006
Posts: 156
Likes: 0
From: Jacksonville Florida
The old cats had been gutted by the previous owner. Replaced the H pipe with a low mileage factory unit off another Z06. Still getting the 0420 and 0430 codes. I guess the sensors are bad? Still down on power under WOT. These codes don't cause any sort of limp mode do they? Any other ideas?
