eightysevenjunker

Ok so when i bought my car,I noticed the OMP was disabled. So i left it that way until a while ago I attached it, This is when the car started hesitating and revving very slow (about an hour after idling). my question is, is it possible to have the OMP disabled without using premix? i cant contact the owner who disabled it. so i dont know if it had premix or not. and one last thing, could it be that when i reattached the OMP that it would cause my cats to become clogged? i think it did lol. + the exhaust is obviously the original so i guess my best bet is to leave the OMP off, and run premix after i do some unclogging. then it will hopefully run like it did when i bought it cause she sounds like she wants to but cant.

One more thing, is there an alternative to unclogging the cats? I dont have any money right now and i dont have the equipment to remove the exhaust at the moment so if theres any ghetto way to do this **** let me know. oh and, how would i make this premix... thanks in advance

alexdimen

iTrader: (13)

Is it possible? Absolutely.

I think what you want to know is if it will cause damage. The answer to that is also yes.

Why do you think the cat is clogged? If it truly is, then you can just smash out the insides if your state doesn't have emissions testing.

How long did you run the car without the OMP and without pre-mix?

eightysevenjunker

thats just it, i dont know if there was any premix. i think its clogged because oil may have made its way to the cats (when i enabled OMP) and they are old so its gotta be clogged. so i cant really answer that. but how long did i run it without the OMP?, 3/4 tank. but like i said i dont know if there was any premix invloved.

alexdimen

iTrader: (13)

Well, that's not how things work. When you enable the OMP, you are letting a small amount of oil be dribbled into the intake and engine. It's not enough to foul a cat.

I didn't mean why you thought the OMP clogged them. I meant what symptoms make you think that they are clogged in the first place...?

If the PO disabled the OMP, then I assume he did it for a reason, which is to pre-mix. The benefit of pre-mixing is better lubrication and less build up inside the engine.

If you really want to know if he was pre-mixing, do a compression test.

eightysevenjunker

I think i figured it out, I only have half an rx7 now. since i couldnt do a compression test i decided to see if T2/L2 was doing any work and i found out its not. i took the spark plug cables off the front rotor and tried to start it, it wouldnt. so then i took the cables off the rear rotor and left the front (t1/l1) on. started perfect, sounds like half an engine to me. so i have one last question, how much is an engine stand, and everything i need to do a complete rebuild?i could be wrong though, maybe the rear rotor isnt getting any fuel but i doubt it.

another update, i played with the injector on the rear rotor and turned it a lil bit and a **** load of blue came out the exhaust then it reved fine lol. so i think i either need new injectors and blah i got this. thanks again

alexdimen

iTrader: (13)

Don't take this the wrong way, but you need to stop diagnosing your car's problems. Because, well, you suck at it. You just decided you need a rebuild or injectors because you don't have spark... think about that for a moment.

The rear rotor isn't getting spark. This is probably due to fouled plugs. Take the plugs out and replace them. While you're at it, you should absolutely do a compression test after you de-flood the engine.

All this is not to say that your engine is healthy. You haven't come out and said it, but I'd guess the car runs like ****. That is based on your clogged cat guess and the fact that your plugs are probably fouled. Healthy engines rarely flood out and foul plugs.