Quote:
Originally Posted by Runnah
Hey hate to resurrect and jump this thread all at once but I can’t start a new thread because although I’ve been a member for a while I don’t post much.
So I have a 1996 T4R 3.4L M/T with a 1st gen S/C and URD 7th injector.
It’s been stalling out for last two months. First once in a while and now 2-3 x/mile. Tach goes to zero. No sputtering just dead. If in gear and rolling I just turn the key off and then on and I’m back in business, sailing along. If it occurs while stopped it won’t start until I turn the key to the off position and then back to the on and start. Otherwise it just cranks with no start.
I have a code P0335 Crankshaft position sensor. I tested the sensor as well as ground in pigtail. All good. I’m thinking either the pigtail wire or the ECM is bad. Does anyone have the wiring schematic for the CPS to ECM and whether there would be signal voltage from ECM to sensor or vice versa and what that signal should be. I know the sensor creates its own signal so Idk. Ignition is being lost or shut down and by me having to turn the key off before i can restart says that powering off resets something. I’m thinking a fault in the ECM but I’d like to test first. BTW I replaced the CPS with a good one from my 1st gen Tacoma And as I said bench tested so it’s good. And the original from my 4Runner went into the Tacoma and is working just fine.
Thanks for any help you can give.
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EWD 1996 below. Props for giving year and engine. Too many people don't.
The only diagnostic in the EWD re the CPS is:
Quote:
RESISTANCE AT ECU WIRING CONNECTOR
(DISCONNECT WIRING CONNECTOR)
NE -E2 : 140-180 OHMS
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Beyond this, the only check on the ECU is swap in a new one.
I don't have a 1996 FSM. You really should follow the protocol in the P0335 section. Closest I have is 2000. Also attached. Probably the same.
Shot in the dark: Have you had the timing belt or Water pump done lately? If so, you should consider the possinility the crank bolt was not tightened to spec and is coming loose. The would allow the crank sprocket to shift forward and signal gets funky. If such work coincided with the onset of problems, they may have damaged one of the teeth on the crank sprocket and that messes up the signal.
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'99 4Runner SR5 5spd 3.4L V6 4WD(U.S), original '99 Talls in front, OME 906s in back, Hella fogs, Trekmaster shocks in front, Billy in back, no running boards, FIAMM horns, Alpine sound, Michelin LTX M/S2's, owned since new.
'97 HiLux SW4 5spd 4WD(Japan model bought in Brazil assembled in Argentina, very close to a 3.0 4Runner/Surf)
'71 FordWillys Jeep CJ5 (with straight six Ford Maverick 3.0 liter engine--lives in the mountains north of Sao Paulo Brazil)
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