TPS or IACV
sancho on the sizzide!
Joined: Aug 2000
Posts: 27,129
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im trying to tackle the same problem. so far the culprits mentioned are the IACV, FIVC or air in the cooling system.
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Joined: Jul 2003
Posts: 28,282
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From: michigan
I solved the same problem on my b16a and my roommates b18c by replacing IACV....also if your PCV system is not hooked up properly, or your pcv is going bad this will happen as well, that is why my buddies GSR had a fluct. idle.
sancho on the sizzide!
Joined: Aug 2000
Posts: 27,129
Likes: 0
I just fixed my high fluctuating idle by rescrewing the piston back in the FITV. I believe these are only found in the OBD1 setups.
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