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[effinomega]

Hello again forum.

I've got a conundrum with ma motor.  I'll try and explain as best I can...

About a month ago the car started running rough upon starting which got better as it warmed up.    Was loosing coolant and eventually got an error code saying misfire on cyl 2.  Did a compression test of all cyls and got very low (45 psi) on cyl 2.  Upon further checking there was coolant in the cylinder, so head had to come off.   (All bores \ rings OK - compression issue appeared to be tuck hydraulics tappets)

Two weeks ago, I drove it into my garage and duly stripped her down.  Took the head for a skim and pressure test, all good so far.  Cleaned and checked the hydraulic tappets and checked the valves all ok.  Rebuilt the head and stuck it back on with new gasket and bolts. Got a new belt kit and water pump and stuck them on.  Checked time was spot on.  Put the rest together and was expecting to fire her up and enjoy the rest of the holidays but alas, for the last four days I've been trying to get her to start with not a peep. 

The engine cranks just fine but there appears to be a lot of fuel going into the cyls and getting the plugs very wet.

Have checked the coil and everything is sparking as it should (and I'm assuming when it should!).

I've borrowed a mates Launch reader and there are no codes at all showing.  Even tested unplugging crank sensors etc to get a fault and plugging them back and all seems fine.

I'm now at a complete loss and hope someone here can come up with any ideas.

Thanks in advance folks.

[steve6367]

Do you have a spare Cam sensor you can try?

Also can you verify you have fuel in the fuel rail?

[4x4]

Have you checked all electrical connections and earths.

[effinomega]

Hi guys,

Thanks for speedy replies.

Steve - unfortunately don't have a spare.  Probably need to buy one but not sure if it's the cam sensor or a crank sensor fault - the forum has an awful lot of info on these sensors but I'm getting lost with all the varying opinions.  It's getting plenty (too much) fuel. Checked valve on fuel rail - fine. 

4x4 - Double and triple checked.  All fine.

Managed to borrow a timing light and confirmed that no.1 fires when it's supposed to - all timing marks where they should be.

Also checked fuel pressure regulator to see if it was just flooding but looks to be ok.

The only thing I remember doing wrongly when I stripped the engine was when I took off the main rad hose from the thermostat housing, it still had water in it and it poured down the side of the engine - right above the crank sensor position.

?

[Steve B]

I have a used working cam sensor here    When my cam sensor packed up the car still started ok

[effinomega]

PM sent, cheers

[RobG]

Desmond will start (eventually) with a dodgy cam or crank sensor

[effinomega]

Doesn't sound like its catching at all. 

I've now run down the battery turning it over.  On charge for rest of the night.

Is there any way of checking the sensors out of the motor?  Is it poss to verify what the ECU send to each sensor?

[05omegav6]

Check the coolant temp sensor is connected properly... (not the guage one)

[effinomega]

is that the plug near the egr on the housing?

[4x4]

Yes ,theres 2 sensors at rear of engine next to egr,1 gauge temp and other ecu temp 

[effinomega]

sensor and gauge connectors OK.  unplugged and reconnected just to be sure.

cheers anyway

[Steve B]

When you turn ignition on .. Does the light on dash (car with Spanner ) Go out

[4x4]

I know on the frontera there was 2 wires at rear of engine that connected to the head,these caused me problems when i changed started on the frontera,wouldnt fire up as they were lose.

[effinomega]

yep, light on dash goes out.

found some info for checking crank sensor (and others).  will need to check tomorrow though as its nucking futs outside now.