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Surging, high idle 2003 type s rsx

526 Views 6 Replies 3 Participants Last post by  MoHo
So my problem started with a surging idle. I replaced the iacv and the problem went away for a few days but came back. Had a friend change the tb, sensors on it, map sensor, and iacv. Now it sometimes surges when cold, but usually does when in neutral and the car is coasting. When it warms up the idle stays around 2k rpm’s and kind of sputters/bounces. Driving in like 1st-4th gears at low rpm’s it is rough when letting of the gas like in the 1.5-3.5k rpm range when letting off the gas it’ll jolt or buck kind of hard. If anyone could help I would really appreciate it.

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After replacing all that, did you do a hard reset on the computer? Remove the cables from the battery and hold them together for 30 seconds ( or more). The car will still run rough as the comp re-learns. Then might get better.
Yeah, it slowly goes back up to 2k rpm
Your money light is on, Did you scan for codes?
Lol yeah these were the original codes showing before I changed anything. One of the 02 ones is from when I installed the skunk2 alpha headers.
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