New Idle problem install of throttle body Spacer

Honda V-Tec · #1 07-19-2009, 12:56 PM

I have a 95' Honda Civic 1.6ltr Vtec. As of yesterday I had NO PROBLEMs with it. It ran awesome. I installed a throttle body spacer (simple bolt off bolt on, no mods at all) Now my idle bounces from 1000 to ~1700 every second. I removed the spacer and put car back to original configuration and still the problem exists.
I have removed and cleaned the the IACV and the fast idle valve. Nothing helps. I have tapped on the IACV while it was running and there was no change in the idle. I measured resistance on the valve and i got 12 Ohms. Any ideas guys?

bzrk1 · #2 07-19-2009, 05:15 PM

Try taking the grounding cable off the battery to reset the vehicle. See if that works.

Honda V-Tec · #3 07-19-2009, 05:34 PM

Quote:

Originally Posted by bzrk1

Try taking the grounding cable off the battery to reset the vehicle. See if that works.

Ok. Im going to go do that right now. I will let you know. Thanks

Honda V-Tec · #4 07-19-2009, 05:42 PM

It didnt work. How long should I leave it disconnected?

CivicSpoon · #5 07-19-2009, 10:12 PM

MAP sensor and TPS hooked up right (aka not switched)?

Honda V-Tec · #6 07-19-2009, 10:30 PM

I dont think I switched them. I dont even think the TPS harness can reach the MAP sensor. But I will check and let you know.

Honda V-Tec · #7 07-19-2009, 10:39 PM

Checked it, its hooked up right. This is very frustrating, my car was perfect two days ago now its F***ed up. It runs fine when i get over 1500 RPMs. But idling sucks, it bounces back and forth. sucks driving thru a parking lot going vroomm vrooom vrooom!

Honda V-Tec · #8 07-20-2009, 03:12 PM

I talked to a mechanic today and he said that I need to pull out the Hazard fuse cause it resets the computer. He said that taking the ground of the battery does not reset the fault codes. I will try this when I get home...crossing fingures!

Honda V-Tec · #9 07-20-2009, 05:13 PM

Ok, so that didnt work either! I checked the plugs to the MAP sensor and the IACV, I have 5vdc from them. So i know its not my wiring. Someone please help me out!!!

santiagountouched · #10 07-22-2009, 04:03 PM

my civic was doing something real similiar to that.try loosing up the distributior and sliding it towards the front then tighten it back up. that worked for mine

Honda V-Tec · #11 07-26-2009, 03:38 PM

I changed out the fast idle valve from a 93 civic and there was no change. My new IACV should be here tmaro, hopefully it works

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