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GT Turbo P0335 intermittent failure

 
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Old 23 Oct 2016, 05:54 pm
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Default GT Turbo P0335 intermittent failure

2005 Turbo GT (76kmiles). Mods: Cold Air Intake.

Pt runs fine for 30 minutes, then shuts off fast, NO sounds/ no stall. Wait 30 minutes to cool down and runs fine again.

P0335 code, TRAC off light constantly ON, ABS ON.

Proceeded to change BOTH the crankshaft and cam sensors with genuine MOPAR. Same thing P0335.

Only happens when running; it can idle for an hour, no problem.

Any thoughts?

Last edited by titang9; 23 Oct 2016 at 09:10 pm.
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Old 23 Oct 2016, 06:48 pm
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Default Re: GT Turbo P0335 intermittent failure

P0335 - Crankshaft Position Sensor Circuit:

Possible Causes:

1. Intermittent Crankshaft signal
2. Crankshaft Sensor signal circuit is open or it is shorted to ground
3. Crankshaft Sensor 5 volt supply circuit is open or shorted to ground
4. Crankshaft Sensor ground circuit is open
5. Camshaft Sensor is damaged or has failed
6. PCM has failed

Is there anything else does goes out when it happens?
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Old 23 Oct 2016, 08:26 pm
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Default Re: GT Turbo P0335 intermittent failure

When it happens everything else is normal. Car stays like when you turn the key to ON position without starting the engine. No Limp mode, No stall or hesitation...nothing. When working, runs fine, can rev and boost normal, past 5000.

I'm starting to think the PCM is gone.
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Old 23 Oct 2016, 11:32 pm
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Default Re: GT Turbo P0335 intermittent failure

I would suggest the next time the engine just dies pull the camshaft sensor connector and see if the computer still triggers the code for the camshaft sensor.
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Old 24 Oct 2016, 08:07 pm
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Default Re: GT Turbo P0335 intermittent failure

This is obviously your crankshaft circuit that is opening and causing the car to shut off. In fact one of my last cars I designed a circuit to open the crankshaft position sensor to shut the engine off at a stop to save fuel.
You should inspect the harness from the sensor back about two feet and check for corrosion, baked insulation, damage, and backed out terminals. you can get a good replacement from the wreckers and cut out the bad section and solder in or crimp in a replacement.
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2003 GT M/T in Onyx Green Pearl on Michelin Pilot Sport AS 3 Plus Tires 205/50ZR17. Dark Slate Gray Interior. OEM cargo net, parcel shelf, slush mats and trunk protector, mud flaps, mopar subwoofer. Platinum edition pedals, Neon SX 2.0 steering wheel with black+grey wrapped leather cover. Generic lowering springs, KYB gas shocks, Valeo solid flywheel conversion and clutch kit. Urethane insert engine mounts. Energy suspension full body urethane bushing kit. Chrysler premium front speakers, Jenson 6x9 rears. Boston Audio 4x55W amp. Panasonic head unit with xtenzi bluetooth. 300W AC power inverter. Escort 360max and Escort Shifter ZR4, dual front+rear dash camera. stage 1 blow off valve and syked tune computer . Boost and oil pressure gauges with Turbo-Timer. Needswings 3" exhaust elbow, Electric valve actuated Y-pipe with catalytic converter. To do: coilovers, 2step controller, quaife diff, Air-Fuel Meter
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Old 25 Oct 2016, 07:29 am
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Default Re: GT Turbo P0335 intermittent failure

Thanks. Wires? Sounds possible, I'll look for it.

Question: Why it only happens after 30 or 45 minutes?
Never when the engine is cold; No matter how many street bumps I get into.

this convertible GT is from a friend of mine. I work on toyotas and hondas.
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Old 25 Oct 2016, 08:26 am
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Default Re: GT Turbo P0335 intermittent failure

Wiring is possible. the 30 minutes is related to heat, the wire could have corrosion, then when it get hot enough the signal degrades to the point the car can't run. Check wiring, and don't forget. NEW parts mean, Never Ever Worked. Check the resistances of your old sensor and compare them to a new sensor. If they are the same, either both dead or both good.
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Old 25 Oct 2016, 11:26 am
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Default Re: GT Turbo P0335 intermittent failure

Quote:
Originally Posted by UnitD77 View Post
Wiring is possible. the 30 minutes is related to heat, the wire could have corrosion, then when it get hot enough the signal degrades to the point the car can't run. Check wiring, and don't forget. NEW parts mean, Never Ever Worked. Check the resistances of your old sensor and compare them to a new sensor. If they are the same, either both dead or both good.
exactly. isolating to a component level and confirming a fault is important. the easiest way to check would be to remove the one plug from the computer and use two sewing needles inserted into the correct pins and then check with an ohm-meter. i can get back to you on the correct pinout. also while you check for resistance you can make a salt water bottle spray and aim it all around the connector and up the harness while moving the harness to check for faults.
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2003 GT M/T in Onyx Green Pearl on Michelin Pilot Sport AS 3 Plus Tires 205/50ZR17. Dark Slate Gray Interior. OEM cargo net, parcel shelf, slush mats and trunk protector, mud flaps, mopar subwoofer. Platinum edition pedals, Neon SX 2.0 steering wheel with black+grey wrapped leather cover. Generic lowering springs, KYB gas shocks, Valeo solid flywheel conversion and clutch kit. Urethane insert engine mounts. Energy suspension full body urethane bushing kit. Chrysler premium front speakers, Jenson 6x9 rears. Boston Audio 4x55W amp. Panasonic head unit with xtenzi bluetooth. 300W AC power inverter. Escort 360max and Escort Shifter ZR4, dual front+rear dash camera. stage 1 blow off valve and syked tune computer . Boost and oil pressure gauges with Turbo-Timer. Needswings 3" exhaust elbow, Electric valve actuated Y-pipe with catalytic converter. To do: coilovers, 2step controller, quaife diff, Air-Fuel Meter
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Old 25 Oct 2016, 12:46 pm
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Default Re: GT Turbo P0335 intermittent failure

Quote:
Originally Posted by ptcruisersteve View Post
I would suggest the next time the engine just dies pull the camshaft sensor connector and see if the computer still triggers the code for the camshaft sensor.
I would also suggest hooking up the scan tool, drive it until the engine dies and see if the scan tool is still communicating with the PCM.
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Old 25 Oct 2016, 01:00 pm
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Default Re: GT Turbo P0335 intermittent failure

Pretty sure the trac light is a hint. I haven't had the problem, but I remember people posting about it being on and it relating to something else.
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