heated oxygen sensor??????

corey123 · Post by **corey123** » November 17th, 2006, 9:22 pm

my car runs very rough at low rpm levels at about 3500 it sounds better and runs better

ryanlindenberg · Post by **ryanlindenberg** » November 17th, 2006, 10:33 pm

could be a lot of things, you need to be more descriptive.

check the ribbed intake hose for cracks (especially between the ribs).

torpedan · Post by **torpedan** » November 17th, 2006, 10:41 pm

When is the last time the car had a tune up or plug wires changed out?

94blaze1.6 · Post by **94blaze1.6** » November 18th, 2006, 7:27 am

It could very well be the oxygen sensor as it affects the rpm up to 3 k or so.

corey123 · Post by **corey123** » November 18th, 2006, 8:17 pm

no rips in the intake have changed the pluggs about three weeks ago but not wires. i can be going down the road and push in the clutch and it sounds fine but when i let off it sounds like !@## till about 3000 rpm i dont know how else to descibe it. it started about 2 days after i changed thermostat but it doesnt run hot or anything so i dont think that is it

torpedan · Post by **torpedan** » November 18th, 2006, 9:52 pm

There can be a lot of problems that can cause symptoms like this. First thing I would check is plugs/rotor/wire and the fuel system. If the motor was over heated at one point I would do a compression test as well.

corey123 · Post by **corey123** » November 18th, 2006, 9:56 pm

i did a compression test cyclinders 1 and 2 are bad but have been for while what is the right compression for 1.6 dohc

torpedan · Post by **torpedan** » November 19th, 2006, 2:25 am

corey123 wrote:i did a compression test cyclinders 1 and 2 are bad but have been for while what is the right compression for 1.6 dohc

If two are bad that could very well be your problem, its hard to say wihtout the car in front of me. What was the numbers it scored?

corey123 · Post by **corey123** » November 19th, 2006, 12:34 pm

1 was 115 2 was 75 3 and 4 were150