My '94 Tercel idles too low when stopped, but when it's driving it's fine. I replaced the spark plugs thinking that it may have been missing in one cylinder but it's only gotten worse. I had to adjust the throttle cable to get it to stop stalling. Maybe it's a clogged fuel injector? Any suggestions?
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Re: idles too low
A clogged fuel injector would make the engine shake, and your power would be compromised.
Whe you changed the plugs, did you put Toyota plugs in, or a different brand? More often than not, using any other plug than plugs bought at a Toy dealer can make the engine run worse. The engines are designed with a specific plug. Also, replace the wires if they are older than 5 years.
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checkout the plantum gasket give these websites www.alldatadiy.com and www.autozone.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your SUV also would like to give you this information if you every have a hard to find GM-part they sells only GM its Schram auto & truck 1-800-292-1032 and the website is www.schramauto.com wish you the best of luck Michigan Man.
Pull the plugs. Sounds like you have a bad plug or a bad plug wire. Even an engine that misses will run well at high speeds but if it's missing at idle you might have a little oil on one of the plugs. I had a 91 tercel, ran great but leaked a lot of oil which would in turn foul the spark plugs. I'm sure you either have a bad wire or plug. Wouldn't mess with the idle, not sure what state you're in but it could impact emissions testing. Best of luck m'friend! Greg
I have a similar problem with one of my Toyota Corollas. It's a 95 model with the 1.8L engine (7A-FE, automatic). But unlike yours, it has plenty of power while running. Here's what it does. Occasionally the engine misses. Sometimes it will die. This is most likely to happen when you start the car and put it in reverse and start rolling without giving the engine time to adjust. I've been told by some customers that it will die sometimes when coming to a stop. But this has never happened when I drive it. I don't think it's a fuel issue because the car runs just fine when it's running.
Here's what I've tried so far:
Replaced spark plugs and wires.
Used gasoline additive fuel injector cleaner.
Checked air filter.
Checked vacuum hoses for leaks.
Replaced PCV valve and hoses.
Cleaned the air intake and throttle body with carburetor cleaner.
So far there is no change in the problem.
What I plan to do next:
Check the throttle position sensor.
Check the MAF sensor.
Adjust the idle via the set screw.
After that I have no idea what to do next if the problem persists. The check engine light is not on so I don't think there are any error codes. Will let you know.
Had a similar problem on a 1992 tercel. Hard to find but when checking sparkplugs accidentally found that one of the spark plug cables was internally damaged. Thus the full electrical energy was not being delivered to the spark plug. Upon replacing the distributor cap with all the sparkplug cables, the engine picked up idle speed and run smooth again.
hi there i seems that you have replace alot of components after driving for a few days to let the ecm relearn with the new components . is it still missing at low speed ? seems you may have a spark plug thats not offering up its full potential please isolate what plug is the weak one by removing one spark plug wire from plug at a time to listen to the engine and see what plug is causing miss ok good luck you could replace all but this is an extra expense take a look