sensor..

I believe its at the driverside front as you view the engine from the front of the car. I think it has somethiung to do with hot restarts. Mine always had some white grease on it. Not sure what it was. The 3 wire sensor you mentioned sounds like the AIS motor that controls idle air/fuel mixture.

 

Thanks. I did notice that one of the sensors (the front one) had a hose clamp on it, and the housing looked cracked. Looks like I may need to make a trip to one of the local bone yards and try to find one.

 

I'm not sure whatm year the TB temp sensor was discontinued. Look for a vehicle in your year give or take a year or two. Should come off with a 15mm open end wrench without taking the TB off. I always take a collection of metric openends to the yards(8MM-15MM) for the little things, Good Luck.

 

Ais

If you are getting an AIS at the yard then have a T-25 torque bit on hand and you'll have to take the TB off the intake. Was it your AIS that was held on with a hose clamp???? Now thats really ghetto!

 

Ya know, I'm not sure if it's the AIS or not. I know there are 2 plug ins on the throttle body, one has a small, 2 wire plug connector, the other has a larger, 3 wire plug connector and almost looks like the same plug in for the 02 wiring. The smaller one has the hose clamp on it. The is a "buzzing" sound coming from the smaller one just befor start up, and on and off through idle, and it does idle rough, almost tothe point of stalling, but donsn't. I guess next weekend I'll have to make a junk yard trip with $20 bucks in my pocket, my cargo pants on, and my "what-ya-call-it" kit. To get those small whatyacallit's.

 

Doohickies...

Are you descibing the fuel injector that buzzes? It is on top of the throttlebody. The AIS is on the front and the temp sensor is to the right of it. This is while standing in front of the car looking into the engine compartment with the airbox removed.

 

It's an 87 Pacifica, they all came with the 2.2l turbo1. It is a "suck through" so the throttle body is beforethe turbo. When you turn the key to on, but not start it there is a quick "buzz" noise. I am almost sure it is one of the sensors, but seems to be coming from the one that has the hose clamp around it. This weekend I'm hitting the boneyards until I find the parts.

 

The one with the hose clamp is the AIS, and the clamp is factory. The other is the TPS. The suck through doesn't have a temp sensor on the throttle body, just on the intake.
The TBI cars up to 90 I think use a throttle body temp sensor.

 

Thank you whistlin. That realy clears it up for me. The AIS is the one that is making the "buzzing" noise, and it looks like the plastic under the hose clamp is cracked, unless thats the way it came. I will go out today and try to find that temp sensor. Would that also be called the intake air sensor, or maybe air charge temp sensor?

 

I don't think they come cracked from the factory...LOL.
I think the other is charge air temp sensor. I have both I could send you for $10.

 

I was looking at it today, and it looks like thats that way it came.

 

If you're talking about what looks like evenly spaced cracks under the hose clamp you're correct.

 

Bad photo, but thats what I was talking about. My car does have a rough idle, and my check engine has a code of 23 (throttle body temp sensor). That sensor in the photo is what is making the "buzz" noise. Is it supposed to be doing that?

 

I know the photo didn't come out good. I don't know about the buzz, never heard it on my 89 T1. I don't know if the log intake does it or not.

 

This is my first turbo chrysler, so I have no idea how it should sound, perform, or anything like that. I've had a few V8's (Mirada, Cordoba, LeBaron wagon) and a couple of imported ones (82 Colt, 83 Challenger). I do thank you for your help though. I'll give the parts purchase a thought.

 

I bought the temp sensor this weekend and it cleared up the check engine, but it still has the rough idle. So whistlin, I will take you up onyour $10 parts offer. Just email me at erikstrieter@sbcglobal.net with the info on how to get the money to ya.