0701 Fault Code

Had an issue with my 2005 3.0 DI Wagon yesterday.

Short 45km drive then parked for 1/2 an hour, went to start the vehicle, cranked over but would not fire. Checked all fuses, all good. Pumped the fuel primer - was firm after 2 pumps. Opened fuel filler cap just in case there was vapor lock - all good.

Tried to start it again - cranked but did not fire.

Disconnected the battery for a few minutes & tried again, still no fire.

By this time the battery was getting a little tired from cranking so called a mechanic I knew who was only a few blocks away. While waiting I disconnected the battery again, hoping it might help reset things. Mechanic turned up 10 mins later.

Tried to start it again - wouldn`t fire. Mechanic spayed some Start Ya B*rsted into it & it fired up, then idled like nothing was wrong.

Got in it to drive back home & the Engine light was on.

Got home & turned it off, then it started up straight away & the Engine light had gone out. Stop & started it a few times without any problems.

Checked for error codes & got a 0701 - Camshaft Position Sensor
(incorrect signal from the Injection Pump Control Unit)
Refer to Injection Pump Control Unit
Circuit malfunction, Injection Pump Control Unit.

Spent some time researching on the Net last night & no clear info on what the problem was.

Started it this morning a few times with no problems.

Will reset the codes today & check for air leaks in the fuel system as well as any electrical connection problems & take it for a few test runs.

Hoping the Guru`s on here might have some idea what the problem may be.

TIA,
VK.

@mudski
Isn't this what your 3L was doing when the pump went ??

Sent using Pixel 6

Quote:

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Originally Posted by Hodge

@mudski
Isn't this what your 3L was doing when the pump went ??

Sent using Pixel 6

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Yeah pretty sure it was mate. The circuit board on the pump is cooked. Back then it was a throw away job and new pump. I think now some places can replace the circuit board. Not sure who does this though.

Must have started the Patrol a dozen times or more yesterday. Started straight away every time with no codes coming up.

In some of the research I have done the pump has been replaced but it has not solved the problem & I don`t want to have to spend that sort of money for nothing.
Some other possible causes that others have chased have been a faulty Cam Sensor, low voltage to the pump or other sensors caused by a faulty starter solenoid.

Have also read that it will throw a code if the engine is cranked for more than 5 seconds without firing up.

The trouble is none of the other sources of info have come back with a definite fix.

Did read that it is possible to have the circuit board on the pump replaced, so that might be an option but I will start by checking/replacing the Cam sensor first & go from there.

Just watched a teardown video on one of these Injector Pumps. The 0701 fault code refers to the Camshaft Position Sensor which is inside the pump. I thought the code referred to the camshaft in the head of the motor LOL.

Link to the vid if anyone is interested

https://youtu.be/vL5l11dmMmI

Quick update.

After starting & running fine for 3 weeks after the initial fail to start, the patrol refused to fire the first time I turned it off somewhere remote. This happened 2 days before Xmas.

Had to walk about 3 km`s to get phone reception to organize a Tilt Tray. Mechanic tried for about an hour to get it to fire up with no luck, so on the truck. Got it home & as the towie was leaving I walked over & turned the key & the bloody thing fire up & idled like nothing was wrong. Turned it off but it would not start again.

Checked the codes & got 0701 again. Nothing I could do over Xmas & New Year so it sat for 3 weeks.

Rang a diesel specialist about the problem. The sensor & electronics can be replaced but the pump has to come off for this to be done & would be nearly as expensive as fitting a whole reconditioned pump.

So new IP it is.

They quoted $3000 for a reco pump & $1500 - $2000 in labour to do the job. Back on the tilt tray last Tuesday & down to have the job done. Spent $600 on towing, $200 for the initial recovery & the rest for the trip to the repair shop.

Should hear back tomorrow.