Partial Loss of Power

[batmobile78m]

'97 2.2

Plugs and wires are new.
It never had good pick-up to start with, but now it takes forever to get from 25mph to 50mph, even if floored. This condition seemed to happen rather suddenly a couple days ago.
Everything seems fine except for this lack of quickness to 50mph. Once there it runs fine.

Any guesses?? thanks

[|WYG|SS]

Originally Posted by batmobile78m

'97 2.2

Plugs and wires are new.
It never had good pick-up to start with, but now it takes forever to get from 25mph to 50mph, even if floored. This condition seemed to happen rather suddenly a couple days ago.
Everything seems fine except for this lack of quickness to 50mph. Once there it runs fine.

Any guesses?? thanks

check the throtle positioning sensor.

[zirb]

Change your fuel filter. Then run a can of seafoam in the fuel tank.

[Cavalier2000]

heres a good question did it get worse after you changed the plugs. and wires. Could be either a bad wire or a mis positioned wire

[muff34]

Originally Posted by batmobile78m

'97 2.2

Plugs and wires are new.
It never had good pick-up to start with, but now it takes forever to get from 25mph to 50mph, even if floored. This condition seemed to happen rather suddenly a couple days ago.
Everything seems fine except for this lack of quickness to 50mph. Once there it runs fine.

Any guesses?? thanks

Have you had it checked for codes? If no codes ,I`d change the fuel and air filters. I have a 2000 with the 2.2 and it`s not that peppy either ,I just figured it was a gutless wonder being a 4 banger. Maybe I`m missing out on some hidden power ......LOL ,but I love the 36 to40 MPG Muff

[batmobile78m]

It has run well for a couple months since i changed plugs and wires.

No codes logged.

TPS is OK.

Fuel & air filters have been replaced recently.

Never heard of this seafoam stuff. Have to check it out.

Still struggling to find something. thanks

[JeRkY2]

What kinda mileage do you have on the car?
I've never heard of seafoam before but you could try running a few tanks of gas with some injector cleaner in it. If you have a sticky or partially plugged injector, this may help. If it is an injector you may want to take it to a garage to have them clean the injectors this they would use a more concentrated formula. The stuff you put in your tank once in a while is usually best for preventative maintenance.
If it has a lot of mileage it could be possible that you have a plugged catalytic conveter or a worn out camshaft.

[batmobile78m]

182,000 mi
I thought about the injector cleaner. I'll try the pour-in type, but that hasn't worked too well when they were dirty before. A cleaning fee of about $120 at a shop around here. Was trying to avoid that.

clogged converter, could be. camshaft, maybe. Do you know of any way to check those things?

------Feels like trying to accelerate with the brake partially on-------

I've narrowed it down to about a dozen different things. Might take a while.

[|WYG|SS]

check oxygen sensor casue i lost some power with mine when it was bad and once i replace it it ran good. not sure if it can be the problem. all i know is it can give the computer a bad reading and then different amouts of gas. has the gas been staying about the same level for a long amount of time?

[Cavalier2000]

lol i got around 185,000 on my 2.2. I had to change the coil packs this week end they were giving me a bit of trouble. how old are your 02 sensors?