Last night I was driving down the freeway doing about 75 (cruising). I saw my RPM drop down, and my car stalled while still in motion. I tried to restart the car, and the engine wouldn't turn over, it just sat there cranking.

I drive a 93 RX7, 94k miles on it, 40k on the motor. Greddy intercooler and intake, hks downpipe and rb dual tip exhaust.

I'm kind of at a loss as to what it could be. I've checked all around for vac leaks, but with no luck. When I try and crank it, I can smell fuel faintly, which leads me to believe my injectors are fine, the last thing I can think of to check would be the spark plugs. Any ideas?

 

Do not start it until you locate the source of the fuel smell.

 

The fuel you smell is probably because it is flooded. But As far as it shutting off..Did you run out of oil? Have you checked the ignition?

 

did u lose all power. could be a bad alternator or loose belt. see if your battery is still holding charge

 

I haven't checked the ignition yet. Its about time for an oil change anyways, which I was going to do in a little bit, but I don't think that would cause it to shut down completely, would it?

The alternator belt is fairly taut, and is about 2 months old. Althought for being 2 months old, it shred a little bit on the edges. I was guessing one of the pulleys just isn't aligned properly.

 

The same thing happened to a friend of mine and hate to say it , but it was his enigine. Hopefully that's not your problem. Check all ground points and see if your getting spark.

 

i had a similar problem as you and it turned out to be one of the wires in the wiring harness located in the driver side wheel well. one of the wires plastic cover burnt off making the wire ground itself out. might not be your problem but a possiblity. good luck.

 

before you jump to any conclusions check all fuses,
unflood the engine and check for spark

 

ditto

 

Do you have fuel pressure, for sure?

 

LIKEWISE. IT WAS MY ENGINE. THE IDLE BECAME ROUGH WITHIN A COUPLE OF SECONDS.

youll know if it tries to crank over! if you hear nothing then theres a problem

 

I just noticed... the dreaded "oh ****" red light in the center console is on....

 

uh oh EXH OVERHEAT oh no!

 

Does that light actually have a meaning?

 

in for answer.

 

For vhalin's reference, since I found it while reading some more:

There's a sensor right above the cat (or in the cat, not sure) that detects the heat in there. That's what the warning light is for. :p

 

Correct me if im wrong but that light is always on unless the engine is running. Same pattern as the check engine light.

 

i dont think so....the light comes only when its been set off
unless my lights have been broken the whole time

 

Light was never on for me before. I think I found the problem, but I need a scanner or a pfc commander /ecu to prove it. My guess is you guys were right and it was a wire grounding itself to the car, and that wire happen to be the heat sensor. Right now the car thinks it's hot, whenever I try and start the car, it attempts to crank and then the radiator fan comes on.

Unfortunately, wiring and I are not really friends, as wiring usually gets me frustrated, which is generally not good for working on a car. I'm running low on 'dammit' tools.

 

I agree with someone above.

Check fuses and spark first. You already know you got fuel cause of the smell so its not that (technically speaking).

Im having the same problem as you. I was doing the normal winter warmup and the car was idling perfect for like 5 minutes, then just died.

Now it cranks and cranks but doesnt turn over. I checked and changed (since it was that time anyway) all plugs, wires, the ignitor and the coils and it wasnt that. Now i know its the fuel. Im gonna make sure and check before i start replacing things.

 

Did a compression test on the block, came back zero for the rear and close to zero for the front. Guess that means it's time for my wallet to cry *tear*.

 

Sounds like you didnt do it correcly. What was your pattern like for all three rotor sides per housing? Look up how to do a correct rotary compression test. Usually you will still get one blip of compression because only one seal will fail. But there is the possibility that it took out two seals. But the fact that you got 0 compression on both housings is very very unlikely. So go makes sure your doing it correctly and get back to us.