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I have a '95 1.6 DOHC I did more or less the same thing money_greenmx3 did. The car was fine before I worked on it. I removed the spark plug wires and the distributor cap to investigate an oil leak. I put it back together, replaced the wires. Somehow I put it in the wrong firing order, making engine...

passed finally. but my car still lopes. which means it's still misfiring. which means it's not combusting thoroughly. which means this new cat won't last until my next e-test.

ok, i'll replace the cat. hope this fixes both my problems.

i'm getting the Magnaflow listed here

hey SuperK,

your point was taken. its just that i was betting/hoping it wasn't the cat.

so, a '95 RS in the US is OBD-II? i thought it was OBD-I
my engine isn't listed here under pre-96 OBD-II cars.

hey Tune67, you told another guy about a much simpler cat test: If you have a rotten egg smell from the cat.. it is plugged and will need to be replaced. Put your hand over the end of the exaust pipe (only when cold.. dont burn yourself) and have someone start the engine.. you shouldnt be able to ke...

it seems you are all stumped about the loping. well, forget it. but now i need help with emissions. not sure if it's related to the loping, but i need to pass in ten days. my car is not burning fuel all the way it seems. i've changed the plugs. wires and cap are relatively new. i've inspected and cl...

will carb cleaner work?

i have some left over. i don't wanna have to buy a whole new can of something just for a test if i have something laying around that can do the job.

i'll try that. thanks.

i read about this a lot in the forum. "tiny cracks" on the intake hose can cause vacuum leaks. but just how tiny can they be? my intake hose has tiny cracks all over the goose neck, but they don't go through all the way in, they're only on the surface. should i consider that a source of a ...

at cold starts in the morning, it idles fine. as it warms up, the loping begins and the car shakes. the car accelerates smoothly. once it's in motion, there seem to be no issues. except for the gas smell from time to time. but once it comes to a stop, the loping returns. the muffler sputters too. so...

i just did a compression test. here are the values:

150 165 160 170

so what does this mean?

if you do find a vacuum leak, which commonly occurs in the "accordian tube" from the throttle body to the MAF... ok, the accordian tube does have tiny cracks. i've looked and felt the inside of it, the cracks doesn't go through all the way in, it's seems to be on the external surface only...

We did a standard tune up and of course it still loped, but we also replaced the intake... I gave him my old intake equipment. Seemed to work wonders... You might inspect the car for any vacuum leaks that might hinder your idle. so, your friend, did he have emissions issues as well? did the intake ...

i left a lot of things out. sorry. please, bear with me again. the car is a '95 1.6L DOHC, manual, with 177540 miles. i don't want to say what state/region i'm from, if that's OK, for it might affect your judgement. background info: it sat for 2 years with little to no operation before i bought it. ...

hello, first post here. this will be long, please bear with me. i want to be as detailed as i can. i first consulted this forum about smog/emission issue. i tried almost all the tips that i read here; tune-up, oil change, spark plugs, air filter, fuel filter, PCV, O2--even though its not out yet. i ...