Have a vito 111 that won't start turns over ok and will fire on squib of easy start but won't run, obd said crank sensor which we changed, but still no go. Bought it drove home 40 mile started and moved next day, day after would only run after a sniff of easy start. Stopped it and not started since Any help appreciated
Starting problem
- Thread starter Gilbo1951
- Start date
Petrolheed
Active Member
Hi,
I'm sure there are others on here that'll have a better idea than me, hopefully they'll read your post and come up with a few suggestions. Is the fuel in the tank fresh or old, when did it last have a fuel filter change, what is the condition of the air filter like. I'm just clutching at straws, but it seems strange that it fires up with a squirt of easy start.
I recently changed the crank sensor in the SL, the new sensor needs to be "learned in" which "roughly" involved using Star to initialise the engine ecu back to default settings, then erasing the existing sensor data, then driving as per the Star instructions. I've no idea what's involved in this regard for your vehicle though, again someone might chip in and advise.
I'm sure there are others on here that'll have a better idea than me, hopefully they'll read your post and come up with a few suggestions. Is the fuel in the tank fresh or old, when did it last have a fuel filter change, what is the condition of the air filter like. I'm just clutching at straws, but it seems strange that it fires up with a squirt of easy start.
I recently changed the crank sensor in the SL, the new sensor needs to be "learned in" which "roughly" involved using Star to initialise the engine ecu back to default settings, then erasing the existing sensor data, then driving as per the Star instructions. I've no idea what's involved in this regard for your vehicle though, again someone might chip in and advise.
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Did you use a brand new original crankshaft position sensor, or a second-hand/aftermarket one?
And do you still have the crankshaft position sensor error after replacing it?
And do you still have the crankshaft position sensor error after replacing it?
Thanks for reply, I used a new after market one checked resistance 1200 ohm old one was 650 so thought rrrr, cleared code, but after cranking error came up again 0336 crank sensor
Fuel fresh filter passing fuel freely, bet I'm not the first to have this prob, thanks for help
Petrolheed
Active Member
Here's some useful info that might help, some of which you've already done. It might be useful for you to find out more about the learning process/procedures after fitting the new crank sensor, and, if it's applicable to your vehicle, sorry I can't help more on this. You might try testing/cleaning the camshaft sensor too.
What causes the P0336 code?
Common mistakes when diagnosing the P0336 code
There are a few mistakes that are often made when diagnosing trouble code P0336, but the most common of these is replacing the crankshaft position sensor without considering the other possible solutions.
The crankshaft position sensor and camshaft position sensor work closely together, and for this reason, it is common for the crankshaft position sensor to be replaced when the actual problem is that the camshaft position sensor is faulty.
Before replacing the crankshaft position sensor, It is also important to consider the possibility of there being an engine misfire or a wiring issue. Giving these components proper consideration will save you a lot of time, and will help avoid misdiagnoses.
How serious is the P0336 code?
A vehicle with this trouble code occurring is unreliable, as it may be difficult to start or may not start at all.
Also, when a problem with the crankshaft position sensor goes unaddressed for an extended period of time, it is possible to damage other engine components. For this reason, the P0336 trouble code is considered serious.
What repairs can fix the P0336 code?
A faulty crankshaft needs to be replaced as soon as possible. Failure to do so for an extended period of time may cause damage to other engine components. When replacing a crankshaft position sensor, using an original equipment manufacturer (OEM) part is recommended.
Make sure to thoroughly inspect the reluctor wheel for damage, as it is commonly overlooked as a cause for the P0336 trouble code. It is also important to keep in mind that an engine misfire can also be responsible for causing this code.
What causes the P0336 code?
- The reluctor wheel has broken, snapped, or has worn down teeth
- Crankshaft position sensor magnet shavings have gotten stuck on the sensor or the reluctor wheel
- Wires and circuits have burned or shorted out
- A short in the crankshaft position sensor wiring harness
- A broken or corroded crankshaft position sensor connector
- Engine misfire(s)
- Faulty crankshaft position sensor
- Faulty camshaft position sensor
- Faulty ECM
- Check Engine Light will come on
- One or more cylinders may misfire
- Car may hesitate upon acceleration
- Car may start irregularly or won’t start at all
- Engine may vibrate/sputter
- Car may stall or backfire
- Loss of fuel economy
- Variations in speed, acceleration, and/or idling functions
- Uses an OBD-II scanner to get all of the trouble codes that have been stored by the ECM
- Visually inspects the crankshaft position sensor for obvious damage
- Inspects the wiring for breaks, burns, or shorts. It’s also important to make sure that the sensor wires are not too close to the spark plug wires
- Inspects the connector for breaks, corrosion, or a loose connector
- Inspects the crankshaft harness wiring insulation for any type of damage
- Inspects the reluctor wheel for any damage (the reluctor wheel should not be loose on the crankshaft)
- Makes sure that the reluctor wheel and the top of the crankshaft position sensor have the proper gap.
- Clears the trouble codes and performs a test to see if any return,
- Uses the scanner to view the RPM reading (done while starting the car)
- In the absence of an RPM reading, uses the scanner to check the crankshaft position sensor signal.
- Uses a volt-ohm meter (VOM) to test the resistance in the crankshaft position sensor wiring and the crankshaft position sensor itself (resistance specifications are provided by the manufacturer)
- Checks the camshaft position sensor and its wiring - since the crankshaft and the camshaft work together, a faulty camshaft position sensor, and/or camshaft position sensor wiring can affect the operation of the crankshaft position sensor.
- If there is an engine misfire, it will need to be diagnosed and repaired.
Common mistakes when diagnosing the P0336 code
There are a few mistakes that are often made when diagnosing trouble code P0336, but the most common of these is replacing the crankshaft position sensor without considering the other possible solutions.
The crankshaft position sensor and camshaft position sensor work closely together, and for this reason, it is common for the crankshaft position sensor to be replaced when the actual problem is that the camshaft position sensor is faulty.
Before replacing the crankshaft position sensor, It is also important to consider the possibility of there being an engine misfire or a wiring issue. Giving these components proper consideration will save you a lot of time, and will help avoid misdiagnoses.
How serious is the P0336 code?
A vehicle with this trouble code occurring is unreliable, as it may be difficult to start or may not start at all.
Also, when a problem with the crankshaft position sensor goes unaddressed for an extended period of time, it is possible to damage other engine components. For this reason, the P0336 trouble code is considered serious.
What repairs can fix the P0336 code?
- Replacing a damaged reluctor wheel
- Repairing or replacing a damaged crankshaft position sensor wiring or circuitry
- Repairing or replacing damage or corrosion of the crankshaft position sensor connector
- Repairing or replacing the crankshaft position sensor wiring harness
- Repairing any engine misfires if necessary
- Replacing a faulty crankshaft position sensor
- Replacing a faulty camshaft position sensor
- Replacing or reprogramming the ECM
A faulty crankshaft needs to be replaced as soon as possible. Failure to do so for an extended period of time may cause damage to other engine components. When replacing a crankshaft position sensor, using an original equipment manufacturer (OEM) part is recommended.
Make sure to thoroughly inspect the reluctor wheel for damage, as it is commonly overlooked as a cause for the P0336 trouble code. It is also important to keep in mind that an engine misfire can also be responsible for causing this code.
Thank You it is appreciated
