need help car turnd off twice today while driving
 

i have been using my wolf 3d v4 plug in on my fc for about 6k miles now, it is not tuned yet. it will be next month. anyways as i was driving my car turned off today, on the hand controller was a screen saying some thing about tubo timed out. did not read well since i was trying to stop the car. i hit the switch off and then started the car it was slightly flooded drove fine after that. then on the way home 7 hrs later the car turned off again and the same screen came on , this time i hit the switch off and back on and the car came to life again with a big ball of fire shooting out the muffler. the only thing i have done recently was installing a hks spark amplifire, i have driven the car with it for about 200 miles now with no problems. i looked on the wolf manual and could not find the same screen that came out on mine. any imput will be nice.
thanks

Ive had that before, never found a solid reason why.

The only thing ive done was check that the turbotimer harness loop thing didnt somehow come loose, not sure if that was the problem but the prob never came back

My car does this all the time because it has a very weird home made security and turbo timer ignition system. What basically happens is that the ignition key circuit is turned off and the energy stored in the capacitors inside your Ignition amplifier feeds back into the ECU the ECU sees this and thinks it is the turbo timer funtioning!!

Daily happening for me my guess is that you have a lose connection to your ECU from the ignition switch.

Cheers
Michael Smith

i dont have a turbo timer on my car, but i will check all conectors on the ecu ,ignition and switch. I think is the switch since i had problems with it before.
thank guys . u guys are the best and always helping.

thanks again
Tony

HI rx7dky , We all like to help out here ...most of us have been through the mill before. I wish I knew about this forum when I started 10 years ago with my first Wolf :)

I hope you find the problem soon. The Circuit opening relay can cause problems too!:icon_tup:

Cheers
Michael Smith

you dont have a turbo timer, but the wolf requires a plug to be in its turbo timer harness.

so am i looking for any power interruption to the wolf?. the wolf is a plug and paly. so i need to follow the power just like in the manual right? i dorve the car for 2 more days with no problems . but today it did it 3 times. 2 while boosting.

thanks
Tony

Do you lose anything else like dash lights headlights guages go erratic or warning light flash ? Does the engine come back to life if you hit the starter again without turning it off?? The circuit opening relay feeds power to the injectors and the ECU. My money is on the wiring to the circuit opening relay or the relay itself. As you increase you power output you also increase the current the ECU requires if the contacts are burnt it will drop voltage and then heatup and go soft. This means every operation after that has less tension on the contacts and a greater chance of the HR(high resistance ) returning with increasing frequency.

Cheers
Michael Smith
P.S a quick way to diagnose this problem is to swap relays with a friend for a week.

i have another car for parts . i will get the relay from there. nothing else goes off. i have to turn the key to off position then back to on position and the car comes back to life ( of core while the car is moving in gear). no other warnings nor flashing lights. the computer just goes to the turbo timer screen. i drove it today with no problems, several loads on boost and hi revs and everything just fine.


thanks
Tony

i did have the tachometer jump form 900 to 1800 several times while at a light. then a few seconds later when i try leaving i was going about 5mph and the turbo timer screen came on . that was the last time it did that yesterday.

thank
tony

Swap the relay and see what happens :)

i swaped the relay. it worked fine on the way to work today. but on the way back; i noticed my tach started jumping several times from 400rpms to about 1800. then the turbotimier screen came on, i turned the car back on and it did again right away about 3 times , another thing i noticed was that the volts were down to about 13.5, 13.6 after car was running. the alternator is a 3rd gen just rebuilt about 4 months ago. tomorrow i will try to test all plugs on the wolf,switch,and batery. another question could it be the leading igniter, i do have the tach conected to is instead of the trailing.

thanks
Tony

What year , month and model is your car. I will have a look at the wiring diagram to see whats in the path to the ECU supply.
Cheers
Michael Smith

thanks michael. the car is a 87 t2, the motor is a 13b re, the car has the stock harness. so you really think is the power supply to the ecu? its just that i have seen the rpms jumping too much and i wanted to rule that out. i will be working on the car all day today. so i will keep an eye on the forums.

thank
Tony.

On Page 21 (50-24) of the manual is the main relay contacts its plugs are f32 and f33 now both it and the battery to the ECU feed off bus B (A21SB are the buses)at the Top. This connects to Page 11 (50 -12)and is feed directly from the battery. Now there seems too be no connectors between the battery and the ECU if you believe the diagram. However if the alternator failed or ABS draws too much current then it cause the voltage to drop. The main relay may also cause battery to be intermittent to the ignitors this will have the same effect. A faulty ground may cause the main relay to drop out. 3 on page 19 or (50-22).


So my next guess is a faulty earth number 3 under the dash near the steering wheel and or the main relay. I hope this helps.

Cheers
Michael Smith

just changed the main relay. cleaned all grounds . did not find the one under dash. i ll keep you posted on the out come.

thanks again
Tony Martinez

still doing it. my next thing will be re doing the power wiring, i am going to run a new wire from the batery to the wolf. also i need to fing that gound #3. if after that the problem persist could it be the wolf it self?

thanks
Tony

The Wolf could be faulty, What I would do is setup a multi meter onto the power wire to the Wolf and a ground to the chassis and see what happens when it stops. I really think it could be a earth now but it is really hard not seeing it happen and being able to test it when it fails. A bypass may be a quick way to prove your power supply. You then could re earth the ECU and main relay then if that fails the ECU would have to be the main suspect.
Cheers
Michael Smith

i am off from work again on sun. i will run a new power wire to the ecu. and i am set to find that gound # 3 . i will also set new grounds to the main relay and ecu. I am also convinced is the ground # 3 . after i saw the wiring diagram that ground is the common ground to the main ralay and ecu. and since the leading coil starts going out first then the turbotimer mode kicks in there is no doubt is the ground. once again thaks for your support and keeping my rx7 dream alive.

thanks
Tony Martinez

ok, i did a direct ground wire on the main relay. I looked every where for the ground wire of the wolf, but it seems that is has grond from different places. i checked the powersorce and its ok. hope that just with the ground on the main relay will do ok. any other susgestion will be welcome. if it ends up that is the wolf it self how difficult is it to get it fixed? or where can i send it to get it fixed?

thanks
Tony

Mazdas have some trouble with earths, also you often find connectors that join wires in the mazda harness.. I know this because I have stripped my harness down and rewrapped it after soldering the connector that join the wires and placed heatshrink over them. The single biggest problem is your car is LH drive and mine was RH drive so there are differences too. The earths also get a white corrosion under terminals.

I hope you find it, the ECU needs to taken to a dealer if it is broken sorry I can't help with that bit. I would be looking to a crook earth or a sudden load on the electrical system.

Cheers
Michael Smith

after the direct earth to the main relay,adjusted the alternator( belts were lose), ctested the conectors on the ecu and tighten the fues box (the nut had fallen off) and tighten the switch(the bolts on top were also lose due to vibration) i have driven the car 2 times with no problems what so ever. i will drive it again today and see how it acts. but so far so good.

thanks
Tony Martinez

Loose Ignition switch?? Hmmm:icon16:

so far so good it haas not done it again.

i just want to say thank you for helping me out:icon_tup:


thanks
Tony Martinez