rx7power

Today I went to this place to do some sort of treatment with a brand called "MOC". Anyways these guys sprayed my throttle body with this stink spray, then injected this carbon cleaner into my intake manifold. AFterwards the car runs fine and continues to run fine until I hit the higher rpms(7000rpm+) now my car can't even hit its 8000rpm redline, it sorta seems weak like it has no power past 7000rpm, and it sputters while I try to hold it past 7000rpm. My question is what could be wrong, are my plugs fouled. I was talking to one of my rotary buds and he said that it has the symptoms of fouled plugs. I hope that's all it is. please help a fellow rotary dude out. thanx.

Bambam7

Well, definately check the plugs, but your cat could be clogged up too with the chemicals.
Also, the chemicals may have removed carbon or something bumping up your compression....but very doubtfull.
I have experience the same problem, but it saw because of overfueling for some reason.
Here's what i would do- Check the plugs and cats first.
Then properly adjust the TPS, timing, and idle (with the set connector jumped)
Then reset the ecu, by taking the neg terminal off the battery for 15 minutes or so, and hit the brake a few times. Reconnect it, start up the car (will run funny for a second) and re-check the idle.
Good luck.

rx7power

bambam

thanx for replying, I forgot to mention that i don't have any cats, but i'll try checking the plugs and resetting the ECU thanx again.

Icemark

Plugs and O2 sensor are the first things I would be looking at