Ok, I have a problem starting my car when the car is warmed up. It cranks just fine but it take a really long time for it to start, and also I have no power in low rpms and have a hard time getting to high rpms. When I drive I have to keep my rpms really high to get up hills. Any ideas?
The cars got 32000 miles MT. I have mazdaspeed intake and exhaust; also I have new plugs, bhr coils and new fuel pump.
I was wandering could the catalytic converter or the o2 sensors cause this problem?
thanks

 

Look at the third and fourth "TSB"

http://www.finishlineperformance.com....php?pageid=11

 

umm... there were two threads in the last few months with hot start problem.

I can't remember what the cause was for their problem.

Try a search.

Back in the old days it was a bad starter.

 

cold crank is fine?

 

Cat converter test.
Test ignition system.
Compression test.

 

Check the cat.

 

Yes, now that I recall.. I think that was the answer on at least one of the hot start cars.

 

My car had a warm start problem. When I stopped for gas, the car wouldn't restart. It had to sit for 15 min. before it would start again.
Engine was replaced under warranty.

 

A local had a hot start problem and fixed it with replacing the starter switch. However that won't bog you down while driving. Not lookin good for you.

 

i had that, i try to start it after fill up and it took an extra second

 

Thanks for all the reply you guys.
Ok, I had a Compression test done and it was ok, so I guess the engine is fine.
Next I’m checking the cat tomorrow.
Oh and also I think I replaced my starter last year around this time.

 

Cold start's ok but still kinda off
It takes longer than it used to

 

Compression test was ok
I have the BHR coil system. Installed it 3 weeks ago.
I'm ganna try to check the cat tomorrow