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88 Coupe
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Posted: Sat Jun 07, 2008 12:39 pm |
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Joined: Sun Feb 15, 2004 3:25 am Posts: 3196 Images: 10 Location: Southern California
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Hi dakotaolds,
Welcome to TOC.
Quote: ........ Are they all 5/32's? Not sure how much to get.....
Take the old lines to your local parts supplier. They will be happy to match them.
Norm
_________________ Harry S. Truman wrote: When you have an efficient government, you have a dictatorship.
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garrmark
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Posted: Sat Jun 21, 2008 8:15 pm |
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Joined: Sat Jun 21, 2008 7:59 pm Posts: 3 Location: Cleveland, OH
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I have a really similar symptom. It stumbles off idle, but clears up when I give it more gas. I notice it most when inching forward at exit ramps and things like that. I also got a check engine light, pulled the code and it reads P1406 EGR Valve pintle position circuit.
In regards to scanning the code the '94 is a pain in the butt, because it has an OBDII connector but it's an OBDI system. The Autoxray EZ-Read 2000 with the blue gm cable works, there's also an Actron superscanner that should work (CP9150). But the autoparts stores can't read em, cause they only have OBDII scanners (usually).
I also have another symptom that was pointing me toward a vacuum issue. When I accelerate, the vent blower gets weak, when I'm off the gas it blows fine. I'm discouraged that your vacuum line replacement didn't help.
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88 Coupe
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Posted: Mon Jun 23, 2008 12:46 am |
TOC Member |
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Joined: Sun Feb 15, 2004 3:25 am Posts: 3196 Images: 10 Location: Southern California
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Hi garrmark,
Welcome to TOC
Quote: ........ stumbles off idle, but clears up when I give it more gas ........ Could be a faulty power/ground connection at the battery, computer, a sensor, or anywhere between. Or, it could be a simple vacuum leak. Quote: ........ P1406 ........ Might be related, might not. Unplug and replug the electrical connector, at the EGR, 5 or 6 times, and see what happens. Quote: ........ I'm discouraged that your vacuum line replacement didn't help.
Hoses are not the only potential sources for vacuum leaks. EGR gasket, is always a possibility.
With the engine idling, spray all connections that separate vacuum from the atmosphere, with carb cleaner. If the idle speed changes, you've found a leak.
Norm
_________________ Harry S. Truman wrote: When you have an efficient government, you have a dictatorship.
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88 Coupe
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Posted: Sat Jul 12, 2008 11:27 pm |
TOC Member |
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Joined: Sun Feb 15, 2004 3:25 am Posts: 3196 Images: 10 Location: Southern California
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Download the PDF version of the users manual for the AutoXray AX2500 and check it out for yourself.
Just remember: Codes are only part of the diagnostic process. They do not tell you what's wrong, they only tell you where to look.
Norm
_________________ Harry S. Truman wrote: When you have an efficient government, you have a dictatorship.
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88 Coupe
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Posted: Sun Jul 20, 2008 1:32 pm |
TOC Member |
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Joined: Sun Feb 15, 2004 3:25 am Posts: 3196 Images: 10 Location: Southern California
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From the Summit page, previously linked:
Quote: Features include:
* Show trouble and pending codes in English * Reset check engine light * Support multiple trouble code requests, generic codes, pending codes, and enhanced codes * On-screen display of OBD-I trouble codes, OBD-II generic, and OBD-II manufacturer-specific codes * Display readiness test status * Internet-upgradeable
Which part has you confused?
Norm
_________________ Harry S. Truman wrote: When you have an efficient government, you have a dictatorship.
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88 Coupe
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Posted: Sun Jul 20, 2008 9:51 pm |
TOC Member |
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Joined: Sun Feb 15, 2004 3:25 am Posts: 3196 Images: 10 Location: Southern California
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dakotaolds wrote: ........ referenced needing additional stuff to use the cord successfully ........ Got it. The scanner is already OBD 1.5 capable. It's just not financially viable to ship a cord that only a few buyers can use. garrmark wrote: ........ If you want live scan data though it's another $100-200 to upgrade the scanner ........
The software upgrade is for those who require "real time data" instead of diagnostic codes.
Norm
_________________ Harry S. Truman wrote: When you have an efficient government, you have a dictatorship.
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