Car starts, surges to 5000RPM
01-07-2011 | 03:41 PM
#1
Thread Starter
Junior Member
Joined: Dec 2010
Posts: 23
Likes: 0
From: Sierra Vista, AZ
Car: 1987 IROC
Engine: 305 TPI
Car starts, surges to 5000RPM
When I start my car it stumbles, then surges to 5000RPM. If I press the gas, the RPM's come back down. What could be backwards to cause this. Thanks, Joe
01-09-2011 | 12:22 AM
#2
TGO Supporter
Joined: Oct 2002
Posts: 9,067
Likes: 1
From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Re: Car starts, surges to 5000RPM
More details on the car? What motor do you have? Mods?
01-09-2011 | 12:34 AM
#3
Senior Member
Joined: Dec 2009
Posts: 850
Likes: 8
From: Chilliwack BC
Car: White 1987 IROC-Z
Engine: 305 TPI LB9, 215 HP
Transmission: Borg-Warner T5 NWC
Axle/Gears: Borg-Warner 7.75 with 3.27 ratio
Re: Car starts, surges to 5000RPM
Check out your TPS idle voltage, and also how it reacts when you move it through it's full sweep, basically your looking for a smooth increase in voltage, with no voltage spikes!!
Post back with your findings!!
01-09-2011 | 07:34 PM
#5
Thread Starter
Junior Member
Joined: Dec 2010
Posts: 23
Likes: 0
From: Sierra Vista, AZ
Car: 1987 IROC
Engine: 305 TPI
Re: Car starts, surges to 5000RPM
I know the TPS voltage is .55 with just the ignition on. I'll test it through the full sweep tomorrow. Thanks for the input.
02-10-2011 | 07:26 PM
#6
Thread Starter
Junior Member
Joined: Dec 2010
Posts: 23
Likes: 0
From: Sierra Vista, AZ
Car: 1987 IROC
Engine: 305 TPI
Re: Car starts, surges to 5000RPM
**FIXED**
I am officially an idiot. There was a leak because i bolted the EGR electric wire between the runner and TPI base plate. Thanks for the help in checking other things though.
I am officially an idiot. There was a leak because i bolted the EGR electric wire between the runner and TPI base plate. Thanks for the help in checking other things though.
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