S2000 Under The Hood S2000 Technical and Mechanical discussions.

rough idle with check engine light

Old Jun 10, 2001 | 05:28 PM
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Default rough idle with check engine light

hey guys i have a stook with only 2100 miles on it and it has a real rough idle with the check engine light on. i first thought that it may have been the plugs but the car does not idle under 1000 rpm. the transmission feels fine i have no idea what went wrong has anybody ever heard this happening? i also checked the oil, and i had to add 2 full quarts, and the check engine light is still on. the car shakes at idle like one of the mounts had broke but why would a check engine light come on if the engine mounts broke? i have to take it on to get it looked at anybody know of a dealer that services our stooks well in san antonio, tx
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Old Jun 11, 2001 | 12:28 PM
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mine does that too when the light's on. i think it's because the computer switches to default settings (air, fuel, etc.).
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Old Jun 11, 2001 | 12:38 PM
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Spaboy#5599,

Can you explian rough idle?

When I start my car when it is cold and tap the gas, the car feels like it's going to die when the RPM's return to idle...

Same thing with you?
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Old Jun 11, 2001 | 04:34 PM
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sup phantom just got word from honda service saying that i had a cylinder that couldnt hold, or losing compression. he said that was the explaination for the idle being real rough, he also said he was going in further on the block to find the main oil problem. this really bites the big one, of course the sales manager offered us a loaner car, but what should be done guys? should i ask for it to be fixes with the heads out and everything everywhere or do i ask for a new motor? i properly broke it in at 600 miles, never even seen rain yet. has this happen to anyone? Im going to talk to the service writer tomorrow.
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Old Jun 11, 2001 | 04:36 PM
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have you checked the oil up till now? Or did it just recently burn 2 quarts?

-Shing
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Old Jun 11, 2001 | 04:43 PM
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last time i checked the oil was at 1100 miles and 1500 miles in my garage. the break in oil measured just right.
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Old Jun 12, 2001 | 02:00 PM
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well it is a number 4 cylinder failure with two bent valves and the block is in good shape. the service writer said they sent the valves to a machine shop to have it worked on. has anyone gones though this? will my car run normal again? please help me out thanks.
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Old Jun 12, 2001 | 02:08 PM
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Where's Barry?
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Old Jun 12, 2001 | 04:56 PM
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the dealer said i had a bent valve on the number 4 piston, would this cause the engine to burn oil, or does the short block deal with that.
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Old Jun 12, 2001 | 06:18 PM
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Email B-Man he is the expert on this failure mode:


barry@newpa.com
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