High Idle, exhaust man glowing red

clarkrc82 · 11-04-2009, 12:52 AM

The tps checked out ok. My buddy thinks it is the idle control valve, its supposed to make a clicking sound when you turn off the car but it doesnt?

cre · 11-04-2009, 01:27 AM

When checking for codes the A/C must be OFF and you musn't press the throttle, either of these will set a code 51.

A false A/C signal to the ECU will set the A/C idle-up in the ECU causing an increase in idle when it's not really needed. The A/C idle increase is only a bump of a couple hundred RPM, not 1300.... if you've still got an idle of +2000RPM quit dicking around with the TPS and ISC.

Code 51 has absolutely nothing to do with the ISC... is there some other reason you're worried about that right now? Often they don't make any ticking noise because they need to be disassembled and thoroughly cleaned out.

***None of these has anything to do with a glowing manifold.***

I'm getting a bit confused here.... care to clean up your own thread a bit and tell us what you did and didn't manage to fix and why you're looking at some of this new stuff?

clarkrc82 · 11-04-2009, 01:53 AM

ok, my buddy thought it was the isc, book says your supposed to hear a click.

The ac wasnt on and I was not pressing on the gas. The code 51 went away and its not flashing any codes right now. Its still runnin around 2000rpm, just found out the alt is bad, dont think that would cause the high idle.

The only thing I have fixed on it was the hg, and every other gasket that goes with it, I also replaced the knock sensor. Thats it.

This car has been sitting for 4 years and it ran great before the bhg.

There has been a couple of time when I start it up and it idles around 700rpm and the it slowly works its way up to 2000rpm, then it jumps back and forth from 1000 to 2000. the highest it has idled was 2800rpm. If I completely retard the dis it idles around 1400rpm.

cre · 11-04-2009, 01:59 AM

You went back and re-timed everything as detailed in the four links I posted? Or are you just "sure it's fine"?

So, the car got a BHG and sat for 4 years then? I sure hope when the HG went that no coolant entered the oil system... otherwise you may have more to worry about than just burnt valves.

clarkrc82 · 11-04-2009, 02:13 AM

it hasnt been timed because its idling at 2000rpm. cant time it when its that high.

Yeah the oil was mixed with the coolant. Its had 2 oil changes to clean it out.

No burnt valves either. No smoke, and this sounds dumb but for idling high it runs really smooth, no vibrations and it doesnt miss fire. And when it does drop down to normal it runs smooth to.

I am completely lost with this car, Ive gone over every hose and electrical connection and everything seems good.

cre · 11-04-2009, 02:49 AM

Quote:

Originally Posted by clarkrc82

it hasnt been timed because its idling at 2000rpm. cant time it when its that high.

Sigh.... you didn't REALLY read my post then.

Quote:

Originally Posted by clarkrc82

Yeah the oil was mixed with the coolant. Its had 2 oil changes to clean it out.

I mean that I hope you thoroughly flushed it before the car was stored. If it sat for four years with the crank and bearings, etc. sitting in water contaminated oil then things could go bad real fast... rust does that.

Quote:

Originally Posted by clarkrc82

No burnt valves either.

If the manifold's glowing red think about what's happening to the valves...

I've tried... I'm done.

clarkrc82 · 11-04-2009, 03:28 AM

[QUOTE=cre;74578]Sigh.... you didn't REALLY read my post then.

No I have checked that S&%T 3 times now, every thing lines up. The only issue I have is with this http://www.cygnusx1.net/Supra/Librar...aspx?S=IG&P=19

It says "align the grove of the distributor housing with the protrusion on the drive gear" there is no f%&kin "PROTRUSION" on the drive gear, only the grove on dis housing.

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11-04-2009, 12:52 AM	#1
clarkrc82 Stock Join Date: Oct 2009 Location: Tacoma Posts: 9	The tps checked out ok. My buddy thinks it is the idle control valve, its supposed to make a clicking sound when you turn off the car but it doesnt?

11-04-2009, 01:27 AM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	When checking for codes the A/C must be OFF and you musn't press the throttle, either of these will set a code 51. A false A/C signal to the ECU will set the A/C idle-up in the ECU causing an increase in idle when it's not really needed. The A/C idle increase is only a bump of a couple hundred RPM, not 1300.... if you've still got an idle of +2000RPM quit dicking around with the TPS and ISC. Code 51 has absolutely nothing to do with the ISC... is there some other reason you're worried about that right now? Often they don't make any ticking noise because they need to be disassembled and thoroughly cleaned out. *None of these has anything to do with a glowing manifold.* I'm getting a bit confused here.... care to clean up your own thread a bit and tell us what you did and didn't manage to fix and why you're looking at some of this new stuff?

11-04-2009, 01:53 AM	#3
clarkrc82 Stock Join Date: Oct 2009 Location: Tacoma Posts: 9	ok, my buddy thought it was the isc, book says your supposed to hear a click. The ac wasnt on and I was not pressing on the gas. The code 51 went away and its not flashing any codes right now. Its still runnin around 2000rpm, just found out the alt is bad, dont think that would cause the high idle. The only thing I have fixed on it was the hg, and every other gasket that goes with it, I also replaced the knock sensor. Thats it. This car has been sitting for 4 years and it ran great before the bhg. There has been a couple of time when I start it up and it idles around 700rpm and the it slowly works its way up to 2000rpm, then it jumps back and forth from 1000 to 2000. the highest it has idled was 2800rpm. If I completely retard the dis it idles around 1400rpm.

11-04-2009, 01:59 AM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	You went back and re-timed everything as detailed in the four links I posted? Or are you just "sure it's fine"? So, the car got a BHG and sat for 4 years then? I sure hope when the HG went that no coolant entered the oil system... otherwise you may have more to worry about than just burnt valves.

11-04-2009, 02:13 AM	#5
clarkrc82 Stock Join Date: Oct 2009 Location: Tacoma Posts: 9	it hasnt been timed because its idling at 2000rpm. cant time it when its that high. Yeah the oil was mixed with the coolant. Its had 2 oil changes to clean it out. No burnt valves either. No smoke, and this sounds dumb but for idling high it runs really smooth, no vibrations and it doesnt miss fire. And when it does drop down to normal it runs smooth to. I am completely lost with this car, Ive gone over every hose and electrical connection and everything seems good.

11-04-2009, 03:28 AM	#7
clarkrc82 Stock Join Date: Oct 2009 Location: Tacoma Posts: 9	[QUOTE=cre;74578]Sigh.... you didn't REALLY read my post then. No I have checked that S&%T 3 times now, every thing lines up. The only issue I have is with this http://www.cygnusx1.net/Supra/Librar...aspx?S=IG&P=19 It says "align the grove of the distributor housing with the protrusion on the drive gear" there is no f%&kin "PROTRUSION" on the drive gear, only the grove on dis housing.