Cold Weather Problems?
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Junior Member
Joined: Feb 2001
Posts: 91
Likes: 0
From: Pittsburgh, Pa, USA
Cold Weather Problems?
I own an 84 TA 4bbl. While driving in the recent cold weather of western PA, I noticed that my "check engine" light came on whenever I was crusing at highway speeds (60-75mph). During this time, the temp gague went down a bit. It went out as soon as I started working the engine harder by pulling hills, and the engine warmed up some. My guess is that the fuel isn't being vaporized enough due to the cold weather (ice cold air running through the carb) condencing it, making the emissions electronics think something is wrong. It done this once before, when I was running without a thermoustat (the old one went bad), and the weather was starting to get cold. It hadn't done this since I put the new thermoustat in prior to the cold weather. The car did not act up at all, no power loss or hesitation. Thanks for any replies.
Senior Member
Joined: Jul 2001
Posts: 943
Likes: 1
From: texas
why dont you scan the codes to see what the problem was. sounds like an egr code since there was no noticable performance loss and the light went off a little while later.
[This message has been edited by u r sofa king we tah did (edited October 10, 2001).]
[This message has been edited by u r sofa king we tah did (edited October 10, 2001).]
Member
Joined: Oct 2001
Posts: 326
Likes: 0
From: Irvine, CA
Yup, sounds like the EGR to me, and it would account for the tempratue decrease since the valve is responsible for circulating exhaust gas BACK into the engine...
Pull the code and see if you get a (32)
The light probably went off only because you pushed the engine harder, the EGR will disengage at WOT and higher throttle....
-ONE2FLY
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1990 IROC-Z Camaro
Artic White w/ Gold Decals, 305cid V8 TPI, 700R4 Auto w/ OD, 16" 1992 Z-28 rims (w/ white trim), Z-rated Extremos 245/50/16s (new), Power Options, T-Tops, Tinted Windows, Flowmaster Exhuast w/ High-Flow Cat-Back....
Pull the code and see if you get a (32)
The light probably went off only because you pushed the engine harder, the EGR will disengage at WOT and higher throttle....
-ONE2FLY
------------------
1990 IROC-Z Camaro
Artic White w/ Gold Decals, 305cid V8 TPI, 700R4 Auto w/ OD, 16" 1992 Z-28 rims (w/ white trim), Z-rated Extremos 245/50/16s (new), Power Options, T-Tops, Tinted Windows, Flowmaster Exhuast w/ High-Flow Cat-Back....
Junior Member
Joined: May 2001
Posts: 56
Likes: 0
From: Budd Lake, NJ
Car: 2002 Camaro SS
Engine: LS1
Transmission: 6 speed
Axle/Gears: GM 3.42
My 86 did that until I replaced a vacuum hose that was completely split. That car was 4bbl as well.
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1992 25th Anniversary z28 Convertible
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1992 25th Anniversary z28 Convertible
Thread Starter
Junior Member
Joined: Feb 2001
Posts: 91
Likes: 0
From: Pittsburgh, Pa, USA
Where can I get a code reader, and how much do they cost? That, and why would it only do it in COLD weather, and only at highway speeds? It never done it when I was driving in the city... even for long periods of time. Thanks for any replies.
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