I changed the oil making sure it is synthetic 10w30,replaced the fuel rail pulsation dampener,Checked timing belt and tensioner check out fine but it will not go above 2500 rpm and it acts like it is missing,it is a manual 1.8liter 16value
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Rep: 102,5 mil
18
191
304
If the motor runs up to 2500 and then sounds like its hitting a revs limiter then you may have a plugged catalytic convertor. an easy test to see if the convertor is working all right is to get a inf red thermometer and aim it at the pipe just in front of the cat and then on the pipe just behind the cat . The motor needs to be hot when you do this and rev the motor at 2000rpm . The temp should be 100+ degrees hotter on the backside of the cat . If the temp is higher before the cat than after the cat then the cats not working . If the temp is the same at both ends its not working . Hope this helps
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Rep: 685,2 mil
3,4 mil
1,1 mil
2,6 mil
I'd take it to an AutoZone and get a free computer read out to help find out what to fix.
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Rep: 18
1
Do you have coil packs or a distributor that the wires from the spark plugs hook up to? If it's coil packs, and one is bad, it could causing a misfire, or a whole cylinder to be down. Meaning you would be way down on power. Computer diagnostic from Autozone might help, but you can test it by running the car and unplug one wire, with the other three in, to see if you have a dip in power. If you get a dip in power, then that one is fine. If you unplug one, and there's no change, you've found the one that's bad. Try this with each one, and if you get a dip with each, you can most likely rule your ignition system out. Other thing I can think of it the TPS sensor, or the throttle position sensor. A computer diagnostic should tell you if that's bad too. So if you've got a check engine light on, start with the codes.
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