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Re: Throttle Surge
On Mon, 11 Dec 2006 01:54:27 +0000 (UTC), Tegger <tegger@tegger.c0m>
wrote: >tech@bucksportschools.com wrote in news:1165776381.939156.185730@ >80g2000cwy.googlegroups.com: > >> 1994 Honda Civic, 1.5L, 210,000 miles. Engine light came on recently. >> Car would stall or idle at 200 rpm and surge at 1500-1700 rpm. I have >> added fuel injector cleaner to gas and removed air cleaner and cleaned >> intake and throttle plate with cleaner. This fixed the idle problem >> but still have engine surge at 1500-1700 rpm. What sensor should I be >> looking at replacing or how should I proceed from here? >> > > > >Get the error code. It's still in memory even if the light's off now. >http://www.tegger.com/hondafaq/misc/..._E_14JAN03.pdf >See page 15. The "tool" is a bent paper clip. > >Fluctuating idle is often due to a big air leak. First check your coolant >as suggested by Curly and jim beam. If the fluctuation is still there, you >need to check for suction at the lower port in the throttle body, >immediately ahead of the throttle plate (engine full warm). If there IS >suction, the Fast Idle Valve is stuck open. Have you had the intake manifold off the engine? If so you may have not sealed the gasket well allowing an air leak. That happened to my 90 prelude. I replaced the gasket and gooped it this time and it solved the problem. Other possibility is vacume line leaks. Good luck. |
Re: Throttle Surge
On Mon, 11 Dec 2006 01:54:27 +0000 (UTC), Tegger <tegger@tegger.c0m>
wrote: >tech@bucksportschools.com wrote in news:1165776381.939156.185730@ >80g2000cwy.googlegroups.com: > >> 1994 Honda Civic, 1.5L, 210,000 miles. Engine light came on recently. >> Car would stall or idle at 200 rpm and surge at 1500-1700 rpm. I have >> added fuel injector cleaner to gas and removed air cleaner and cleaned >> intake and throttle plate with cleaner. This fixed the idle problem >> but still have engine surge at 1500-1700 rpm. What sensor should I be >> looking at replacing or how should I proceed from here? >> > > > >Get the error code. It's still in memory even if the light's off now. >http://www.tegger.com/hondafaq/misc/..._E_14JAN03.pdf >See page 15. The "tool" is a bent paper clip. > >Fluctuating idle is often due to a big air leak. First check your coolant >as suggested by Curly and jim beam. If the fluctuation is still there, you >need to check for suction at the lower port in the throttle body, >immediately ahead of the throttle plate (engine full warm). If there IS >suction, the Fast Idle Valve is stuck open. Have you had the intake manifold off the engine? If so you may have not sealed the gasket well allowing an air leak. That happened to my 90 prelude. I replaced the gasket and gooped it this time and it solved the problem. Other possibility is vacume line leaks. Good luck. |
Re: Throttle Surge
On Mon, 18 Dec 2006 19:34:58 -0800, san luis <sl@yahoo.com> wrote:
>On Mon, 11 Dec 2006 01:54:27 +0000 (UTC), Tegger <tegger@tegger.c0m> >wrote: > >>tech@bucksportschools.com wrote in news:1165776381.939156.185730@ >>80g2000cwy.googlegroups.com: >> >>> 1994 Honda Civic, 1.5L, 210,000 miles. Engine light came on recently. >>> Car would stall or idle at 200 rpm and surge at 1500-1700 rpm. I have >>> added fuel injector cleaner to gas and removed air cleaner and cleaned >>> intake and throttle plate with cleaner. This fixed the idle problem >>> but still have engine surge at 1500-1700 rpm. What sensor should I be >>> looking at replacing or how should I proceed from here? >>> >> >> >> >>Get the error code. It's still in memory even if the light's off now. >>http://www.tegger.com/hondafaq/misc/..._E_14JAN03.pdf >>See page 15. The "tool" is a bent paper clip. >> >>Fluctuating idle is often due to a big air leak. First check your coolant >>as suggested by Curly and jim beam. If the fluctuation is still there, you >>need to check for suction at the lower port in the throttle body, >>immediately ahead of the throttle plate (engine full warm). If there IS >>suction, the Fast Idle Valve is stuck open. > > > >Have you had the intake manifold off the engine? If so you may have >not sealed the gasket well allowing an air leak. That happened to my >90 prelude. I replaced the gasket and gooped it this time and it >solved the problem. Other possibility is vacume line leaks. >Good luck. What was the code??? A P0505 idle control malfunction? It's likely a bad IAC valve. Chip |
Re: Throttle Surge
On Mon, 18 Dec 2006 19:34:58 -0800, san luis <sl@yahoo.com> wrote:
>On Mon, 11 Dec 2006 01:54:27 +0000 (UTC), Tegger <tegger@tegger.c0m> >wrote: > >>tech@bucksportschools.com wrote in news:1165776381.939156.185730@ >>80g2000cwy.googlegroups.com: >> >>> 1994 Honda Civic, 1.5L, 210,000 miles. Engine light came on recently. >>> Car would stall or idle at 200 rpm and surge at 1500-1700 rpm. I have >>> added fuel injector cleaner to gas and removed air cleaner and cleaned >>> intake and throttle plate with cleaner. This fixed the idle problem >>> but still have engine surge at 1500-1700 rpm. What sensor should I be >>> looking at replacing or how should I proceed from here? >>> >> >> >> >>Get the error code. It's still in memory even if the light's off now. >>http://www.tegger.com/hondafaq/misc/..._E_14JAN03.pdf >>See page 15. The "tool" is a bent paper clip. >> >>Fluctuating idle is often due to a big air leak. First check your coolant >>as suggested by Curly and jim beam. If the fluctuation is still there, you >>need to check for suction at the lower port in the throttle body, >>immediately ahead of the throttle plate (engine full warm). If there IS >>suction, the Fast Idle Valve is stuck open. > > > >Have you had the intake manifold off the engine? If so you may have >not sealed the gasket well allowing an air leak. That happened to my >90 prelude. I replaced the gasket and gooped it this time and it >solved the problem. Other possibility is vacume line leaks. >Good luck. What was the code??? A P0505 idle control malfunction? It's likely a bad IAC valve. Chip |
Re: Throttle Surge
On Mon, 18 Dec 2006 19:34:58 -0800, san luis <sl@yahoo.com> wrote:
>On Mon, 11 Dec 2006 01:54:27 +0000 (UTC), Tegger <tegger@tegger.c0m> >wrote: > >>tech@bucksportschools.com wrote in news:1165776381.939156.185730@ >>80g2000cwy.googlegroups.com: >> >>> 1994 Honda Civic, 1.5L, 210,000 miles. Engine light came on recently. >>> Car would stall or idle at 200 rpm and surge at 1500-1700 rpm. I have >>> added fuel injector cleaner to gas and removed air cleaner and cleaned >>> intake and throttle plate with cleaner. This fixed the idle problem >>> but still have engine surge at 1500-1700 rpm. What sensor should I be >>> looking at replacing or how should I proceed from here? >>> >> >> >> >>Get the error code. It's still in memory even if the light's off now. >>http://www.tegger.com/hondafaq/misc/..._E_14JAN03.pdf >>See page 15. The "tool" is a bent paper clip. >> >>Fluctuating idle is often due to a big air leak. First check your coolant >>as suggested by Curly and jim beam. If the fluctuation is still there, you >>need to check for suction at the lower port in the throttle body, >>immediately ahead of the throttle plate (engine full warm). If there IS >>suction, the Fast Idle Valve is stuck open. > > > >Have you had the intake manifold off the engine? If so you may have >not sealed the gasket well allowing an air leak. That happened to my >90 prelude. I replaced the gasket and gooped it this time and it >solved the problem. Other possibility is vacume line leaks. >Good luck. What was the code??? A P0505 idle control malfunction? It's likely a bad IAC valve. Chip |
Re: Throttle Surge
On Mon, 18 Dec 2006 19:34:58 -0800, san luis <sl@yahoo.com> wrote:
>On Mon, 11 Dec 2006 01:54:27 +0000 (UTC), Tegger <tegger@tegger.c0m> >wrote: > >>tech@bucksportschools.com wrote in news:1165776381.939156.185730@ >>80g2000cwy.googlegroups.com: >> >>> 1994 Honda Civic, 1.5L, 210,000 miles. Engine light came on recently. >>> Car would stall or idle at 200 rpm and surge at 1500-1700 rpm. I have >>> added fuel injector cleaner to gas and removed air cleaner and cleaned >>> intake and throttle plate with cleaner. This fixed the idle problem >>> but still have engine surge at 1500-1700 rpm. What sensor should I be >>> looking at replacing or how should I proceed from here? >>> >> >> >> >>Get the error code. It's still in memory even if the light's off now. >>http://www.tegger.com/hondafaq/misc/..._E_14JAN03.pdf >>See page 15. The "tool" is a bent paper clip. >> >>Fluctuating idle is often due to a big air leak. First check your coolant >>as suggested by Curly and jim beam. If the fluctuation is still there, you >>need to check for suction at the lower port in the throttle body, >>immediately ahead of the throttle plate (engine full warm). If there IS >>suction, the Fast Idle Valve is stuck open. > > > >Have you had the intake manifold off the engine? If so you may have >not sealed the gasket well allowing an air leak. That happened to my >90 prelude. I replaced the gasket and gooped it this time and it >solved the problem. Other possibility is vacume line leaks. >Good luck. What was the code??? A P0505 idle control malfunction? It's likely a bad IAC valve. Chip |
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