So just like every other Sec gen post this is gona be one of those My %#@&@ POS CAR is dead!



So here is the problem. I pulled all the manifolds off the other week to try and fix my 5/6 ports. My 91 n/a dosn't seem to have the pep it should and I lost in a little mix up with a probe gt. So I pulled the AC while i had all that off since the previous owner haxsawed the line anyway.

So the other day i'm driving and BAM! Coolant light comes on, i pull over and the BIG hose from the firewall to the driver side lower engine housing is broken. No problem, I cut and fix, runs fine but I don't push it.

Fast forward to the 4th of july. While showing the car to this kid he revs it to 9k to hear the famous rx-7 roar. Coolant line again goes blasitic and sprays all over the place, then the real trouble starts, the engine starts to bog, then idle rough, not rev over 2k and just chokes. I get her home via a tow and pull the codes. I get a #33, Port Air Valve. I've gone over these, the coolant got over everything on the drivers side of the engine. No loose connections from what I see, It idles hard, misfires, backfires, won't go over 2k and has a heavy gasoline smell. Ive wracked my brain on this for 2 days now and I am at my wits end on what to do. I've checked the vac lines and the coolant is full now. Just changed the trans fluid and reconnected the starter since it was giving me problems.



My only idea's are limp mode ( but what is causing it ) or something to do with the spark plugs, although I checked those and the coils fire. If anone has any idea's please please please help me out. I'm at a dead end here.



-Matt

 

check you tps, mines gotten stuck in and it would rev over 2k if it is just give it a little pop to make it pop out

 

OK, I checked my TPS and the car actauly runs now. Thanks for the great input. Now i'm hitting another brick wall. I drove the car down a mile and back and a few times I had to stop and restart it. It will drive fine but then suddenly it feels like a fuel cut and won't go over 2k. I'm convinced my ECU code has been on for longer than this problem as the CEL always comes on durring driving. I'm going to try and let the car idle fora while. Sometimes durring a hot start my car will drive for a minute then suddenly buck at 2k. I have to open the hood and give it gas and after a few minutes it will work fine until i turn it off and hot start again.



Anythign else I should check into?

 

Sounds like that TPS is still worn & sticking.



Clip a meter on the TPS connector & work the plunger to see if the Ohms values sweep smoothly from <1K to 5-6K.



I'll bet the needle jumps around erratically as you work the plunger.

 

Tps has always been busted, car is just hitting some fuel cut limp mode. Any way to disable this on a 91 n/a?