Which scanner for 1985 Vette
07-06-2011, 08:59 PM
#1
Which scanner for 1985 Vette
I want to be able to check data on my sensors so I'm not playing a guessing game with the car when it runs bad. I have ha d aproblem recently with my car. I thought it was a bad injector but now I'm thinking it may be a sensor.....maybe the IAC. My car is running a bit rich, ideling higher than normal when cold then stumbleing when you pull to a traffic light, hot before surging and then leveling out. This only seems to happen when the car is hot and only reared its head after I dereased the motor. I checked the airfilter to make sure I didn't get it wet and its fine. I plan to change the cap, rotor, plugs, wires, and clean the MAF and TB this weekend. I would also add that my oil has a faint gas smell. It also seems to be heating up a bit more than usual. The car runs great when under throttle and has no power loss.
07-06-2011, 11:00 PM
#3
Melting Slicks
If you have a laptop, download the free WinALDL program and buy the USB cable to interface with the diagnostic terminal. Total cost apprx $60 and will give you the ability to datalog.
07-07-2011, 03:10 PM
#4
Drifting
I want to be able to check data on my sensors so I'm not playing a guessing game with the car when it runs bad. I have ha d aproblem recently with my car. I thought it was a bad injector but now I'm thinking it may be a sensor.....maybe the IAC. My car is running a bit rich, ideling higher than normal when cold then stumbleing when you pull to a traffic light, hot before surging and then leveling out. This only seems to happen when the car is hot and only reared its head after I dereased the motor. I checked the airfilter to make sure I didn't get it wet and its fine. I plan to change the cap, rotor, plugs, wires, and clean the MAF and TB this weekend. I would also add that my oil has a faint gas smell. It also seems to be heating up a bit more than usual. The car runs great when under throttle and has no power loss.
Until you get a scanner, you can pull codes from the ALDL connector with a paper clip, this is detailed in the "search" section of this forum.
07-07-2011, 04:02 PM
#5
Posting because I have this same exact problem. Recent full tune-up, new set of injectors, etc.
I get a code 33 in my car using the paperclip method.
Hope you find your answer!
I get a code 33 in my car using the paperclip method.
Hope you find your answer!
07-07-2011, 04:13 PM
#6
Drifting
07-07-2011, 06:32 PM
#7
07-07-2011, 06:47 PM
#8
Still occurring... in fact, just went out to do the IAC and TPS adjustment, and it seems to have created more problems. Just started a new thread about it here:
http://forums.corvetteforum.com/c4-t...post1578073711
http://forums.corvetteforum.com/c4-t...post1578073711
07-09-2011, 06:08 PM
#9
Changed out the cap, rotor, plugs, wires clenaed the TB, MAF and IAC with new gaskets. Also added a 180 t stat and did a TB coolant bypass and she runs great for now. 180ish on the highway and 210-215 around town with heavy traffic.
The throttle body was so dirty I had to use TB cleaner and a plastic scraper just to clean it. The IAC has slight corrosion on the tip so i lightly wire brushed it. The cap and rotor where horrible very carbon tracked, but they where 26 years old. The wires where a total bitch to change....whats up with all the wire looms and the wires under the distributor.
Also wanted to add the MAF had a large leaf on the intake side blocking it up....still not sure how it got in there.
The throttle body was so dirty I had to use TB cleaner and a plastic scraper just to clean it. The IAC has slight corrosion on the tip so i lightly wire brushed it. The cap and rotor where horrible very carbon tracked, but they where 26 years old. The wires where a total bitch to change....whats up with all the wire looms and the wires under the distributor.
Also wanted to add the MAF had a large leaf on the intake side blocking it up....still not sure how it got in there.