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Idle Problems with my 97 SH!!!

 
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Old 05-22-2011, 12:33 AM
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Icon8 Idle Problems with my 97 SH!!!

I have a 1997 Prelude SH, just rebuilt the entire engine down to the pistons! When i first turn it on, it turns on but when press the gas pedal it doesn't respond, it just dies out when i press the gas pedal. It idles really low when i leave it running like at 300rpm-600rpm then dies out after a few minutes!

I've changed the map sensor, tps sensor, the entire Throttle body, fuel pressure regulator, PGM-FI Main Relay, Fuel INjector's resistance reads 11.7 and the fuel pressure is psi57. Even tried changing the ECM but it wouldn't even turn on with a different SH ECM, new distributor, crank sensor, IAV, Fuel filter, i tested each injector and they spray evenly fine, I made sure everything was for SH prelude but nothing woked!!! i'm so sad!!

COmpression is good on all cylinders!

Any suggestions anyone? Is there like a prelude master out there that can save me!? LOL
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Old 05-22-2011, 09:35 AM
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Re: Idle Problems with my 97 SH!!!

Timing, is it set properly? I hoped u marked the position of the crank at tdc and also have the cam gears at 0-0
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Old 05-22-2011, 09:53 PM
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Re: Idle Problems with my 97 SH!!!

sounds like a timing issue.. I had the same problem in my b18 a while back with skunk 2 cam gears
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Old 05-22-2011, 10:03 PM
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Re: Idle Problems with my 97 SH!!!

sounds like timing to me. also when i did my swap the dizzy had a lot to do withit. I was messing with it for a long time. you rebuilt it and didn't swap it so it is the same exact motor right?
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Old 05-22-2011, 10:12 PM
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Re: Idle Problems with my 97 SH!!!

problem number 1.... you went changing all your parts out before diagnosing...
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Old 05-23-2011, 10:40 PM
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Re: Idle Problems with my 97 SH!!!

If the timing would be off it would still run but bad and respond to the gas pedal fine. lol i already had checked the gears and everything, removed the valve cover and black plastic covers from the side wall of engine. everything check out fine.

I started changing everything because there was no check engine lights or anything, the car does not respond to the gas pedal when i press it. it dies out when i press it, seems like not enough gas being delivered to engine, i checked everything. I changed TPS sensor already too. bot same problem,

I just ordered H22 OEM Honda Injectors to try those out, hopefully thats the solution.

What is the resistance in ohms for h22 obd2 injectors?

Last edited by rumo1112; 05-23-2011 at 11:08 PM.
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Old 05-25-2011, 01:55 AM
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Re: Idle Problems with my 97 SH!!!

I have a 99sh. Had about the same problem car kept on dying so i took out the idle control valve and the fast idle thermo valve. Do some research on those
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Old 05-25-2011, 09:30 AM
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Re: Idle Problems with my 97 SH!!!

"If the timing would be off it would still run but bad", just asking, did you check the timing? I wouldnt "if" about the timing otherwise your rebuild could become a potential new swap.
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Old 05-25-2011, 09:46 AM
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Re: Idle Problems with my 97 SH!!!

you try turning the idle up to 7-800??
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Old 05-25-2011, 11:01 AM
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Re: Idle Problems with my 97 SH!!!

how about ecu problem perhaps?
or
did you install every sensors/hoses/wires correctly?

Last edited by TypeT; 05-25-2011 at 11:20 AM.
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