01 Cvpi low lowend power

[BostonKev]

Hi All, I wanted to get some opinions on what could be causing low end power and knocking issues with this car. It's an 01 with 78k that's been sitting for a while which runs great at higher rpm's. Let me start by saying what's been replaced. I replaced one of the cat converters, all the cop's & plugs, IAC, MAF and the gas filter and drained all the gas out of the tank.

Any other suggestions? Thank you

[way2old]

Hey Kev. By any chance is the transmission starting in second gear instead of first? Just a thought.

[BostonKev]

nope. But I did learn a little more today W2O. I did a compression test and the entire passenger's side has zero compression. Driver's side is normal. Since it seems to run Ok at idle and higher rpms is it a safe assumption that the timing is probably 180 degrees off on the passenger's side or could it be off a tooth in either direction? Ran out of day light when I realized this info. Thank you

[Stick462]

If you have no compression on your right engine bank then it isnt timing.you have four valves open or broken compression rings.My guess it the latter.How long was this engine sitting???

[BostonKev]

I finally got around to doing the teaspoon of oil test late today and still no compression so it should be valve related (theoretically). I have the valve cover off and the cam seems to be turning correctly and pushing down but I'll need to look at it closer next chance I have. Are the cams known for going? Seems impossible that the cam would go & effect an entire bank so I'm confused as to what the state did to screws this car up.

BTW it was probably sitting for a year or 2.

[Stick462]

check the value springs .but ill bet its compression rings/they have siezed on the pistons.