can you guys tell me where to find thermowax/cold idle adjust system?

 

i forgot to mention my car is 89 GTU rx-7.soo yeah thank you

 

Back of the throttle body, and there is not a "adjust". It is the thermowax/cold idle assit.

 

What do i do if my thermowax/cold idle assit is bad do i go get a replacement. if so, i would like to know how to do that. thank you again

 

Threads merged... only start one thread on a subject.


And what makes you think it is bad?

 

ok umm everytime i start my car it revs up to 1000 rpm and then the idle fades down and the motor start to shake alot. sometimes the car dies out on me right when i just turn on the car. but i found out if i gave it some gas and dont make the idle drop to less then 1000rpm its fine. after a few minutes ill just let the throttle go and it'll stay just below 1000 but wont die.

 

okay, then you have other issues.

The cold start assist needs at least 1200 RPM just to activate. If you are starting in neutral and not getting a 1500-3000 RPM initial start, then you have other issues...

Like the coolant temp sensor is disconnected, or the BAC is bad or the AWS solenoid is bad.

 

ok so ill just look into it then thank you. is there anything else i should know?

 

ohh can you tell me where BAC is at. i know the AWS is near it. are they both soleniod valves?. is it a good idea to get them at the pick and pull or the dealer ship? plz let me know. thank you

 

you need to test them, not replace them... what are you a Mazda dealer mechanic???

And locations can be found in the Factory Service Manual. Links for the factory service manual are found in the FAQ for FC sticky thread at the top of this section.

 

im only 16..hahah. so just follow the FSM? does the FSM shows how to test them? what do i do if it is bad?

 

can you explain the system inspection of both BAC and AWS better what the FSM is telling? thank you for helping me out. very much appreciated.

 

Yes, the FSM explains how to test just about every sensor in the car and it shows the location as well. The directions are pretty easy to follow as long as you have digital multimeter and some other basic tools. If they are bad the solution should be obvious, replace them from the dealer or get good, used ones.

 

i tested them and it shows that they are good still. what now?

 

what about the coolant temp sensor for the ECU?

 

umm where is that at?

 

wait wait did i use the right tester? its a AC DC tester. i didnt find any 12v on it so i just put it on +DC and 25v. did i even do it right? when i did that the BAC looked like its working but the AWS didnt show anything. i wonder if i even did it right?

 

25 volts?? You put 25 volts on it??? Did the genie escape right that second???

 

what do you mean?

 

did you see smoke leave the solenoids?

google, "I dream of genie" about the genie escaping the bottle (or in your case the solenoids).

 

ohh i didnt do it right. can you tell my what kind of tools should i use to check if its working because i dont think i have the right tools. im sorry im just barely learning things.