hey whats up. today i was driving to night school and i looked down at the gas gauge and im running low. So on the way home i park my car infron to bank and get money from the ATM. When i put the car in drive the RPM's are fluctuating like crazy. Between the 350-950 RPMS. and when i let go of the brake slightly the car is like jumping and im like WTF. This happened to me a couple of months ago but i payed no attention until today when it happened again. SO i thought hey maybe shes hungry so i gave her $20 shot of 89 at AMaco and the problem persisted. So i got home and was like **** i hope my car is ok. Later on i go back out to get chinese food (wifey didnt cook) then the cars flucutates again then shuts offf? What is going on.



On a couple of occasions it shut off on me as well but i assumed the cold temperature was the culprit but today was 50 degrees in NyC so what is going on . Can anyone help me?



thanks jason

tps?



mike

Getting any ecu codes?

these have a tendency to go out...so ive heard.

it only happens once in a blue like twice in 7 months. and it idles fine all the time

its gotta be a bad electrical conatct somewhere



mike

Check your connections along your fuel system like injector clips and at the pump.Somethings loose somewhere.

yeah thanks im going to look into that. It runs fine then 0nce and while it acts up . Ive been leading to the cuase of a faulty electrical system. Certain electrical parts on my car act up as well ill get it looked at when i put my alarm.



thankz

jazer, nycity

id say TPS. Mine used to go out of adjustment every 8 months or so.

did you change your battery cable ends yet?



mike

my money is on TPS too.

my gsl-se tps varies with humidity/weather



mike

yeah in my opinion the whole plunger TPS setup is junk.



glad I'm switching to a rotary style tps with the haltech.

well the problem is that mazda used a piston tps....



mike

https://www.nopistons.com/forums/pub...#>/biggrin.png



but i thought there were no pistons?



err, nevermind.

with the car running reach under the hood and start wiggling and

shaking all the wires to see if you can get your mystery idle problem to

show its ugly head.

godam pistons go messing everything up. See they should have a rotary tps then this **** wouldnt happens. So if its the tps what do i do to fix it?

yeah i did that. I began finger ******* (my terminilogy for doodling with thingz) the wires and what not. Yeah one day the car didnt want to start on me. It wasnt the battery cause there was light inside the car and when i turn the ignition i hear like a humming noise like froma belt but no crank or anything. I did have low gas at that time so that could of been the problem or is it the TPeeS that it rearing its ugly head?

Usually a TPS doesnt require adjusting as long as no one has touched it

and its functioning properly. There is actually a cap over it from the

factory. Is the cap still on there? Someone could adjust the TPS by accident thinking its the idle adjustment because of its location on the engine it can

tend to look like a idle adjustment, that happened when I got the AC charged on the GXL, my mechanic friend who charged it thought he was kicking the idle up a bit when in fact he was adjusting the TPS. The car didnt run right all the time, I adjusted it back and it was fine. I adjusted it by ear and driving the car and turning it off and on, but there is a way to make a device to properly adjust the TPS, someone must know where there is a write up for it somewhere.

in the shop manual that has you rig up 2 lights, this works good enough unless you have other problems



mike

no just that i think thanks for the info guyz. really helpful

thankz jason

there is a factory tool for it with the 2 lights, but there is a way to make a homemade one as well.... I figured you would know how to make one Mike. https://www.nopistons.com/forums/pub...rcadefreak.gif