VERY high idle - Page 2 - ZR-1 Net Registry Forums

LGAFF · 10-21-2016

tps sensor correct?

Blue Flame Restorations · 10-21-2016

Quote:

Originally Posted by orthodoct

Thanks, Brett. Very frustrating, thanks for your help. I have several patients from Byrdstown. I think that I will leave the password where we left it!
You are THE MAN!
Ty

Woohooo!!! I knew if we stayed at it, we'd get you up and going on the forum again.

Drive that Z like you stole it now!!!! Always here to help.

Brett!
Forum Administrator

orthodoct · 10-22-2016

Yes. Checked it first. Thanks!

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orthodoct · 10-22-2016

Thanks again, Brett. Here for you, too.
Ty

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XfireZ51 · 10-22-2016

If this is a 92, has throttle cable ever been disconnected?

orthodoct · 10-22-2016

Yes, from throttle body when I pulled plenum. Has mechanical ASR.

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XfireZ51 · 10-22-2016

Quote:

Originally Posted by orthodoct

Yes, from throttle body when I pulled plenum. Has mechanical ASR.

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Have u ever reset the cable length?

Paul Workman · 10-22-2016

I wonder if on a 92+ (w/ASR) if it is also possible to leave that throttle cable connected when pulling the plenum, and just flip the plenum over to lie on the edge of the wheel well (driver's side) like you can with the 90/91s? That would save the chance of messing anything up, PLUS facilitation the removal and installation by a few minutes - especially if it has to be readjusted afterwards...

XfireZ51 · 10-22-2016

Quote:

Originally Posted by Paul Workman

I wonder if on a 92+ (w/ASR) if it is also possible to leave that throttle cable connected when pulling the plenum, and just flip the plenum over to lie on the edge of the wheel well (driver's side) like you can with the 90/91s? That would save the chance of messing anything up, PLUS facilitation the removal and installation by a few minutes - especially if it has to be readjusted afterwards...

Paul,

That's nearly exactly what I do. Put a towel on the front tire, then flip plenum over w cable attached. Once back together, I do recheck the TPS voltage

orthodoct · 10-22-2016

If I have to pull plenum again, I will do so but realize that when I pulled plenum, it was first time since new so sort of did a " frame off" restoration of everything. Besides, it ran great for 18 months until yesterday, sat 1 1/2 hours then ok for 40 mile trip home on two lane mountain road. Only residual problem is 2000 rpm idle where it was 1100 or so previously but that is by the tach in the car. I think that it is IAC, but could have a bit of leak past plenum secondary intake butterflies. Probably did too good a job cleaning them. Held up to a bright light with them closed and didn't see any air leakage, but didn't realize until reading on the forum that the grease that I cleaned off was SUPPOSED to be there. Was disappointed to read that. As well as that engine was built, the secondary butterflies on the plenum should be air tight. I can live with an idle of a thousand or so. Runs like a bat out of Hades! Thanks, guys. Will advise once I swap IAC. Got hit with "honey do's" this morning! Great bunch of folks on this forum; glad to be a part of you!
Ty

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10-21-2016	#11
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: VERY high idle tps sensor correct? __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

10-22-2016	#13
orthodoct Join Date: Aug 2014 Location: Crossville, TN Posts: 88	Re: VERY high idle Yes. Checked it first. Thanks! Sent from my iPhone using ZR-1 Net Registry

10-22-2016	#14
orthodoct Join Date: Aug 2014 Location: Crossville, TN Posts: 88	Re: VERY high idle Thanks again, Brett. Here for you, too. Ty Sent from my iPhone using ZR-1 Net Registry

10-22-2016	#15
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,681	Re: VERY high idle If this is a 92, has throttle cable ever been disconnected? __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX

10-22-2016	#16
orthodoct Join Date: Aug 2014 Location: Crossville, TN Posts: 88	Re: VERY high idle Yes, from throttle body when I pulled plenum. Has mechanical ASR. Sent from my iPhone using ZR-1 Net Registry

10-22-2016	#18
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Re: VERY high idle I wonder if on a 92+ (w/ASR) if it is also possible to leave that throttle cable connected when pulling the plenum, and just flip the plenum over to lie on the edge of the wheel well (driver's side) like you can with the 90/91s? That would save the chance of messing anything up, PLUS facilitation the removal and installation by a few minutes - especially if it has to be readjusted afterwards... __________________ Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry

10-22-2016	#20
orthodoct Join Date: Aug 2014 Location: Crossville, TN Posts: 88	Re: VERY high idle If I have to pull plenum again, I will do so but realize that when I pulled plenum, it was first time since new so sort of did a " frame off" restoration of everything. Besides, it ran great for 18 months until yesterday, sat 1 1/2 hours then ok for 40 mile trip home on two lane mountain road. Only residual problem is 2000 rpm idle where it was 1100 or so previously but that is by the tach in the car. I think that it is IAC, but could have a bit of leak past plenum secondary intake butterflies. Probably did too good a job cleaning them. Held up to a bright light with them closed and didn't see any air leakage, but didn't realize until reading on the forum that the grease that I cleaned off was SUPPOSED to be there. Was disappointed to read that. As well as that engine was built, the secondary butterflies on the plenum should be air tight. I can live with an idle of a thousand or so. Runs like a bat out of Hades! Thanks, guys. Will advise once I swap IAC. Got hit with "honey do's" this morning! Great bunch of folks on this forum; glad to be a part of you! Ty Sent from my iPhone using ZR-1 Net Registry