94SRUNNER
GOLD Star
Multiple Misfires, Codes P0300 - P0306, P358...any ideas?
- Thread starter PNWFJ80
- Start date
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I agree. We need an update sir.
ToyotaTechnical
SILVER Star
I was recently dealing with electrical gremlins with similar CEL codes… problem has been resolved. Here are my notes on what occurred. I hope this can help others who maybe dealing with similar situation or codes.
Long story short - The crank position plug had failed internally. I replaced the Crank Position Plug (90980-11162), and 2x terminal repair: 82998-12440. Runs perfect now.
4/10/22: I purchased this vehicle as it would not start or run, and price was right. Replaced fuel filter, and replaced fuel pump. TX truck. So no rust.
Vehicle does not start. Cranks but no start. Code P0335 arrives- Crankshaft Position sensor A circuit. Crank sensor is replaced. (Crank Sensor: 90919-05035). Vehicle now starts and runs. Runs rough. No CEL light.
4/13/22 CEL on, codes:
P0300: Random/Multiple Cylinder Misfire Detected
P0302 - Cylinder 2 Misfire Detected
P0305 - Cylinder 5 Misfire Detected
P0306 - Cylinder 6 Misfire Detected
P0307 - Cylinder 7 Misfire Detected
VSC Trac
VSC OFF
4/14/22:
Coil packs replaced (with Denso coils) on Cylinder 2, 5, 6, 7. No more CEL. Runs VERY smooth and healthy around the neighborhood.
4/17/2:
Truck is running funny. Runs smooth and seems to have power show up all at once when accelerating. Almost as if there is turbo lag. No CEL. Visually inspect timing belt condition and found to be very cracked. Decide to do timing belt replacement before it snapped.
4/20/22:
Timing Belt replaced using AISIN kit. Fan bracket replaced. Radiator replaced. T stat replaced. Denso Alternator and alternator plug replaced (hint hint) using OEM replacement. While doing timing belt, I visually inspected wiring harness to see if there was any damage. Camshaft and crankshaft Wire harness in perfect condition visually.
5/3/22:
Timing belt replacement complete. Vehicle Runs. Bleed cooling system and take if for drive. It randomly dies while driving.
No CEL. Cranks, no start. Not immobilizer issue (as key is recognized by dash… no blinking red light. Vehicle sits for 10 min. And starts up. I turn around to get home, engine dies again. Electric workers every where else. I crack fuel filter, have fuel pressure. It starts again. Dies randomly a 3rd time. Finally CEL comes on. codes: P0300, P0304, P0306.
Another random engine shut off, this time, P0335. This time, cranks, but no start condition. CEL on, code P0335.
…Common theme was P0335, which could be creating miss-fire codes. Even though wire harness is in perfect condition, with new OEM crank position sensor. I received a P0306 code, which is for cylinder 6, which had a fresh coil pack, and healthy spark plug. Something related to timing was root cause. I decide to once again pull the new crank position sensor to see if there was something that fell down into timing cover while completing timing belt job… nope. Nothing. Sensor in good condition. I then see something poking out of the crank position plug… good thing I was wearing my glasses. Could have easily overlooked this.
Internal plug failure. view of plug from beneath car. With plug removed from sensor.
Terminals after they had been de-pinned, and removed from plug:
Crank Position Plug: 90980-11162. 2x terminal repair: 82998-12440.
5/4/22
Crank position Plug Replaced.
Vehicle starts. Runs very rough. CEL on.
P0300
P0301
P0303
P0305 - already has new denso coil pack
P0306 - already has new denso coil pack
P0307 - already has new denso coil pack
VSC Trac
VSC OFF
I turn off the vehicle. Let sit for 15 min. Came back and start it up. Runs perfect. No CEL. Drove around for shake down test for half an hour, continues to run perfect. I assume the ECU had to relearn the proper connection / signal for crank position.
Summary - P0300 and P0335 was resolved by replacing crank position sensor plug. The plug had failed internally due to age/ corrosion. Not surprised though, as these plugs are 20+ years old. Similar situation with my alternator plug. Heat and Age are starting to catch up with the plastic pieces.
Long story short - The crank position plug had failed internally. I replaced the Crank Position Plug (90980-11162), and 2x terminal repair: 82998-12440. Runs perfect now.
4/10/22: I purchased this vehicle as it would not start or run, and price was right. Replaced fuel filter, and replaced fuel pump. TX truck. So no rust.
Vehicle does not start. Cranks but no start. Code P0335 arrives- Crankshaft Position sensor A circuit. Crank sensor is replaced. (Crank Sensor: 90919-05035). Vehicle now starts and runs. Runs rough. No CEL light.
4/13/22 CEL on, codes:
P0300: Random/Multiple Cylinder Misfire Detected
P0302 - Cylinder 2 Misfire Detected
P0305 - Cylinder 5 Misfire Detected
P0306 - Cylinder 6 Misfire Detected
P0307 - Cylinder 7 Misfire Detected
VSC Trac
VSC OFF
4/14/22:
Coil packs replaced (with Denso coils) on Cylinder 2, 5, 6, 7. No more CEL. Runs VERY smooth and healthy around the neighborhood.
4/17/2:
Truck is running funny. Runs smooth and seems to have power show up all at once when accelerating. Almost as if there is turbo lag. No CEL. Visually inspect timing belt condition and found to be very cracked. Decide to do timing belt replacement before it snapped.
4/20/22:
Timing Belt replaced using AISIN kit. Fan bracket replaced. Radiator replaced. T stat replaced. Denso Alternator and alternator plug replaced (hint hint) using OEM replacement. While doing timing belt, I visually inspected wiring harness to see if there was any damage. Camshaft and crankshaft Wire harness in perfect condition visually.
5/3/22:
Timing belt replacement complete. Vehicle Runs. Bleed cooling system and take if for drive. It randomly dies while driving.
No CEL. Cranks, no start. Not immobilizer issue (as key is recognized by dash… no blinking red light. Vehicle sits for 10 min. And starts up. I turn around to get home, engine dies again. Electric workers every where else. I crack fuel filter, have fuel pressure. It starts again. Dies randomly a 3rd time. Finally CEL comes on. codes: P0300, P0304, P0306.
Another random engine shut off, this time, P0335. This time, cranks, but no start condition. CEL on, code P0335.
…Common theme was P0335, which could be creating miss-fire codes. Even though wire harness is in perfect condition, with new OEM crank position sensor. I received a P0306 code, which is for cylinder 6, which had a fresh coil pack, and healthy spark plug. Something related to timing was root cause. I decide to once again pull the new crank position sensor to see if there was something that fell down into timing cover while completing timing belt job… nope. Nothing. Sensor in good condition. I then see something poking out of the crank position plug… good thing I was wearing my glasses. Could have easily overlooked this.
Internal plug failure. view of plug from beneath car. With plug removed from sensor.
Terminals after they had been de-pinned, and removed from plug:
Crank Position Plug: 90980-11162. 2x terminal repair: 82998-12440.
5/4/22
Crank position Plug Replaced.
Vehicle starts. Runs very rough. CEL on.
P0300
P0301
P0303
P0305 - already has new denso coil pack
P0306 - already has new denso coil pack
P0307 - already has new denso coil pack
VSC Trac
VSC OFF
I turn off the vehicle. Let sit for 15 min. Came back and start it up. Runs perfect. No CEL. Drove around for shake down test for half an hour, continues to run perfect. I assume the ECU had to relearn the proper connection / signal for crank position.
Summary - P0300 and P0335 was resolved by replacing crank position sensor plug. The plug had failed internally due to age/ corrosion. Not surprised though, as these plugs are 20+ years old. Similar situation with my alternator plug. Heat and Age are starting to catch up with the plastic pieces.
