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Hard to start after engine warms up...please help!

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Old 05-20-04, 10:11 PM
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Unhappy Hard to start after engine warms up...please help!

I am having some problems lately with my rx-7.
It runs fine and everything but each time it becomes more difficult to start after the engine is already warm up.

I have changed the spark plugs and it stays the same.

I have changed the 0xigen Sensor and it stays the same

I have changed the water temp sensor and it stays the same

the injectors were cleaned and still hard to start after warm up ..

It 's like something is telling the ecu that the engine is still cold when it is actualy warm.

Any help/info would be appreciated thanks in advance


samurai
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Old 05-20-04, 10:12 PM
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check your compression. It's probably low meaning your engine is going to need a rebuild.

Amel
Old 05-20-04, 10:25 PM
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Hey Amel thanks for your reply

What if the compression is good?

Samurai
Old 05-20-04, 10:32 PM
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damn dude. LoL 9 replies just for me I don't think your compression is good, that's the whole point. I had 2 engines do that to me. I thought it was injectors or something was flooding the car.

I checked the compression and it was low on the rear rotor.

How many miles on the engine?
Old 05-20-04, 11:10 PM
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I dont mean to hijack this thread, but I have a similar problem and decided against posting a new thread.

Mine starts right up in hot weather, right on the first crank. But today it was in the 80's and INCREDIBLY humid, and my car will run a little bit rough right when it first starts up. Again it has no problems at all starting up, but it will run a little bit rough untill I Rev it once or twice. Not even a high rev, just up to like 2 grand. IT kindof smells like fuel too, is it possible my FPD or FPR solenoid is going?

Sorry to hijack
Old 05-21-04, 02:10 AM
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what apex seals do you have? is it a rebuild or a stock motor?
Old 05-22-04, 12:06 AM
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It's a stock motor and has almost 64000 miles


samurai
Old 05-22-04, 12:40 AM
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maybe this thread is helpful

https://www.rx7club.com/showthread.p...hot+start+fuel
Old 05-22-04, 01:42 AM
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look into the fpr solenoid and the fuel temp sensor
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