running poorly

[challe1]

I've been working on my brother's 93 gl for a couple weeks now.. It seems to have rough idle issue..and a miss...It's 1.3L man. I've replaced the dist..maf..fuel pump and reg.. It runs better but no power..above 45mph...and it seems to lose more the warmer it gets..I'm thinking it could be the cat plugging up..or the timing belt jumped...I really could use some suggestions..or better insight...

[GenevaDirt]

get a timing light and check the timing...will tell you if it is a belt or disty problem. Separate the exhaust at the cat and try it out....see if there is a differance...or remove the O2 sensor to relieve the pressure.

[challe1]

I gave up for now.. My brother doesn't want to spend any more money on this car...so I'm going to hold on to it til spring..By the way you were right on both counts...This is why it is soon to be mine again..

[WmWatt]

A vaccum guage will diagnose a clogged exhaust. Look at the " sticky" at the top of the forum.

[Levitan]

A vaccum guage will diagnose a clogged exhaust. Look at the " sicky" at the top of the forum.

You shouldn't call Genevadirt a "sicky"! He ate alot of paint chips as a child.

[jglutz]

The blocked cat is easily tested by driviving up a long, steep hill. Power will just fade away.

[GenevaDirt]

You shouldn't call Genevadirt a "sicky"! He ate alot of paint chips as a child.

duhhhhh...which way did he go George....

[challe1]

Just 45 mph is all it will go after it has warmed up and misses then..

[rcottle]

usually if the cat is clogged it will get really hot - cherry red