[mastercraft1995]

My son has a 83 Toyota Celica with a 22re motor that is having an issue.

After it warms up it idles high. What ever gear you're in at what ever RPM your at is what it idles at once you push in the clutch. So say you're in 3rd gear and 2000 RPM when you push in the clutch it stays at 2000 RPM. It might even climb a little bit. If you punch the gas it will idle back to about 1000 RPM when it should be at 750.


Thanks

 

[digmycelica]

Check to make sure the throttle cable has a little slack in it. it might be too tight which will do what you are saying. it requires 2 12mm open-end wrenches to adjust it under the hood on the throttle body. If not , then try turning the air screw on top of the throttle body clockwise . if this helps then put a dab of silicone on it to keep it from vibrating back out.

 

[jwotis]

re: high idle

mastercraft1995, please let me know if you make any progress on this. I have the exact same symptoms in my manual 1988 Celica ST (I'm getting really good at the gas tap at stop lights, but the commute home in traffic sucks). I took it in to one mechanic for regular service and had him look at it- he suggested dissassembling and cleaning the throttle assembly- which he did. Had no problems driving away from the shop, but the issue cropped up again within a few days.

 

[83GTSguy]

Mine has the same issue, usually in cooler weather. And being in Ottawa that works out to about 8 months of the year. Interested in seeing if this works because I've had it checked several times. Getting good at the quick tap too.

 

[jwotis]

Hmm, interesting that you noticed it was worse in cold weather. I was thinking that my car was running better over the past couple days, which coincides nicely with a warm streak.

I've searched a few forums and this seems to be a somewhat common problem, but I haven't seen any posts that indicate a definitive fix. Either 1) people don't post after they solve the problem, or 2) the potential cures are worse than the disease.


Anyway- I can verify it isn't the throttle cable. I had it dissassembled and cleaned once, and I checked it again after digmycelica's post- there is enough slack. Reposting from another thread on a similar/same problem, somebody recommended checking (in order): A) AFM, B) Throttle Position Sensor, and C) Idle Air Control (if present).

I don't know how to do any of that, and didn't find it in a cursory look through the repair manual I have (Chilton) but I'm not a very good mechanic, either.

 

[digmycelica]

http://www.toyotanation.com/photos/data/750/thumbs/100_2445.jpg

click on this pic. link to view. Try unscrewing this diaphragm from the throttle assy. to see if it's sticking.
I doubt it's the air flow meter . I guess it's possible to be a tps but it looks like it would do it all the time if it were sticking. I'm leaning more toward a faulty temp sensor.

 

[83GTSguy]

It'll be a while before I'm ready to fire mine up again to try the fix suggested. Hopefully I'll have it back together and running sometime in May.