Anyone?

Is there a way to fix TPS w/o replacing it? Mazdatrix is asking $180 for it...Pretty damn expensive...

 

no.

other than replacment of a cheap unit and you just have to check ebay for it.

 

I can give you one if you pay shipping. S4 right?
I'm not sure though if it works since I got it from a junkyard and didn't test it.
Can one tell me how to test it using a HOM or something meteR?

 

I wish there was some other way to get this replaced, other than the $263 tag at Mazdatrix for my TII S5, any suggestions?

 

Also I have heard that when you install a new TPS, it self adjust. Is this true?!

 

ONCE AGAIN!.....

GO TO FC3S.ORG

DOWNLOAD THE DAMN FSM AND READ THE THING

THERE IS AN EXPLICIT TEST PROCEDURE FOR THE TESTING AND INSTALLATION OF THE TPS.

A $10.00 METER FROM WALLYWORLD OR IN YOUR CASE PEPBOYS WILL DO THE JOB.

 

What makes you think its busted???? What year tps and car, please.

 

If it works, but your VOM shows non-linear values as you press in the plunger, you can spray some contact cleaner in it, work the plunger a few times and blow it out. Home Depot and Radio Shack both have contact cleaner.

 

Junkyard my boy.. Junkyard.

PaulC

 

how often does the TPS need to be adjusted? (how often does it sqeek its way out of alignment/

Jeff

 

rarely if you tighten it rught.
but it needs seasonal adjustment if its really sensative.

 

Everytime I check mine, it's out of adjustment. Last night I set it at operating temp, went for a drive, checked it when I got back and it was out again.

 

mine when i out it in adjustment is just funky the car acts funny no throttle responce and low speed driveability sucks

 

You both have bad TPS's i bet.

Unless one of you is missing the lock nut on the screw?

 

I am hoping that is what is causing my irratic idle problems. What is the actual "order", if it exists, when adjusting the idle using the TPS, BAC, and A/F screw?

 

read the FSM for your car.

You dont adjust the BAC.

 

Does anyone know of the cheapest price for the TPS and BAC?, I'm thinking of getting them replaced new. Which should I replace first?

 

A good buddy of mine that builds race spec RX7's told me that you can replace the TPS w/ any other TPS. ALL the sensor are the same EXCEPT For the brakets they sit on. The tabs can be pushed, which can be popped out. Then do the same with another TPS. For example, if you have an S5 you can use one S4 tps then do the harness switch by popping out the ends of the wires, and attaching them to your connector.

That's it....you must test them first to find a good one.

Good luck.

 

I read the FSM, but it doesn't tell which to do first, I had to adjust the BAC, it wouldn't idle with the J-Spec version with no idle screw. So basically, I'm compensating by upping the idle with the BAC since there is a faulty component somewhere (probably the TPS).

 

I've tried all 3 methods of setting the TPS, ohmeter, voltage, and lights. The lights are the easiest, and it works the best.. and thats what you are supposed to do according to the FSM. But, you can't check to see if it is bad unless you use the ohmeter.

 

where is the lock nut? i'm getting a new tps soon so i will see if that is the problem i am suspectng it is. also sniper i have another question it's from another post but this one will do i looked at my leading coil yesterday and saw one wire that was not connected it's te black there is 3 wires 2 are connected to the wthe coupler for the (guessing) ignitor. the last one (black wire) has what looks like a snap connection but is not connected to anything?? is this supposed to be connected to anything.

 

Jimmmyv13.....per the 87 manual you adjust the idle on your turbo by inserting the initial set coupler and adjusting your bac's screw. Prior to that I'd check the timing. But then again, don't set the timing if your idle is straying above approx 1000rpm because the ECU will start advancing the timing around that figure.

Never seen a jamnut on a tps. Ever. Sounds like a one off.

 

NOpe, all series 5 cars have jamnuts. (locknuts)

ANd the black wire from your coil SHOULD be loose, there is also one in the leading coil...


Its a Tach signal for the factory timing light!

MUAHHAHAHah

hit me with another one!

 

OK READ MY OTHER POST IT'S THE HELP W/ DIAGNOSIS POST

 

AND HERE IS A LINK

https://www.rx7club.com/forum/showth...threadid=97081