Author Topic: Td5 won't fire  (Read 13739 times)

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ruaritreble

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Td5 won't fire
« on: November 19, 2013, 10:14:30 PM »
We were out last Sunday in the 2000 110. Parked up and came out of the meeting an hour later to find she would only turn over and not start.
A phone call later and we had a mate from up the road with his nanocom.

Nothing obvious, MAF - but this has been like this for some years.
Checked inertia switch
Fuel pump relay clicking in & running. Maybe it was quieter than usual or was I just thinking it was??
All engine management lights com on as they should.
Click test on nanocom for injectors is ok for all 5.
No fuel in oil
No oil in ecu injector harness.
Ecu plugs checked, relays & fuses checked. All seems ok.
Nanocom tells me ECu is not imobilised
She turns over but won't fire.
I did notice a small amount of water in the tray under the ecu. But wires & ecu were dry.

RAC man joins our party. His only comment was no RPM on his diagnostics.
He tried some spray in the air inlet to which it fired on this briefly. I'm not keen on this spray in a diesel.
Fuel pumps out the fuel cooler when disconnected.

Onto the flatbed home - at least it saved a few quid in diesel.

I have since changed the crankcase sensor.
Charged the battery
I removed the ecu & plug in chip had them in the house ontop the boiler for a few days.
But no further on.

Any ideas?

Could it be fuel pressure - i understand this should be 4bar of pressure even whilst cranking - I don't have a method of measuring this.

Bring on the warm light nights or a bigger garage.
Karis 110 - The perfect way to get a MTB to the top of the hill.
Power to the pedal!

Myrtle Air Portable - V8
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MM6IIO
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discoverypete

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Re: Td5 won't fire
« Reply #1 on: November 20, 2013, 06:23:01 PM »
If it fires on the spray but wont run it could be water in the fuel. Have you checked the water trap?

 Pete.

ruaritreble

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Re: Td5 won't fire
« Reply #2 on: November 20, 2013, 09:45:47 PM »
If it fires on the spray but wont run it could be water in the fuel. Have you checked the water trap?

 Pete.
Worth a try but the hazard light for water in the fuel wasn't illuminating.
Karis 110 - The perfect way to get a MTB to the top of the hill.
Power to the pedal!

Myrtle Air Portable - V8
------------------------
MM6IIO
------------------------
http://www.youtube.com/user/ruariboy

http://s826.photobucket.com/home/ruariboy

genem

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Re: Td5 won't fire
« Reply #3 on: November 21, 2013, 02:15:58 PM »
Get a 300 Tdi.

Simple....
If its not broken you are not trying hard enough....

diesel jock

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Re: Td5 won't fire
« Reply #4 on: November 21, 2013, 02:46:17 PM »
Hi ruari having spoke to a few people its looking like your ecu is the problem

MudBucket

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Re: Td5 won't fire
« Reply #5 on: November 21, 2013, 03:02:11 PM »
Hi,

I know you have said you tested the injector harness, did you check the plug from the cylinder head.
Mine did this and i checked the ecu end but eventually found oil in the plug at the head end. gave it a clean and off it went.
difficult to get to, so i ended up taking the plastic engine cover off to get to it.



vag_landy

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Re: Td5 won't fire
« Reply #6 on: November 21, 2013, 04:53:02 PM »
Was it ever run on bio diesel ? Could be fuel pump
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ruaritreble

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Re: Td5 won't fire
« Reply #7 on: November 22, 2013, 09:49:35 AM »
I have never put Bio diesel in it. However as the pump has done 130K I'm counting this as a serviceable item and I shall change it.
NO oil in the ecu plugs nor at the connector at the rocker cover.
Alive tuning have said they will test the ECU if the pump doesn't cure the problem.

-6 oC going to work this morning. To bloody cold to be footering at night on this. Only another week till I get a spare full day to look at it  :o
Karis 110 - The perfect way to get a MTB to the top of the hill.
Power to the pedal!

Myrtle Air Portable - V8
------------------------
MM6IIO
------------------------
http://www.youtube.com/user/ruariboy

http://s826.photobucket.com/home/ruariboy

Sooty

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Re: Td5 won't fire
« Reply #8 on: November 22, 2013, 01:46:58 PM »
does the fuel pump run when you turn the ignition on?

have you checked/ cleaned the earths on the ecu mount & the main earth point thats under the expansion bottle?
www.Allisport.com

no roundy roundy racer here, Its a challenge car that goes fast..............

ruaritreble

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Re: Td5 won't fire
« Reply #9 on: November 23, 2013, 05:23:08 PM »
does the fuel pump run when you turn the ignition on?

have you checked/ cleaned the earths on the ecu mount & the main earth point thats under the expansion bottle?

Yes & Yes ran a new wire from ecu to battery for its earth, no to earth under expansion bottle.
Karis 110 - The perfect way to get a MTB to the top of the hill.
Power to the pedal!

Myrtle Air Portable - V8
------------------------
MM6IIO
------------------------
http://www.youtube.com/user/ruariboy

http://s826.photobucket.com/home/ruariboy

Sooty

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Re: Td5 won't fire
« Reply #10 on: November 23, 2013, 06:14:31 PM »
does it smoke out the exhaust when cranking over?

have you tried bleeding the fuel system (ignition on & 5 pumps on the throttle?)

having no engine rpm when cranking would point towards a crank sensor issue or a signal issue,

the td5 is quite a fussy engine for having the correct battery voltage ive found, engine might crank over ok but soon as ive put a jump on it its fired right up
www.Allisport.com

no roundy roundy racer here, Its a challenge car that goes fast..............

mikes lr

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Re: Td5 won't fire
« Reply #11 on: November 23, 2013, 06:33:35 PM »
+1 on the above but have you tryed the crank position sensor on bell housing +wires to it

ruaritreble

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Re: Td5 won't fire
« Reply #12 on: November 24, 2013, 01:34:48 PM »
No Smoke from exhaust.
I have been through the fuel bleed process.
Battery has been fully charged. I found that when the battery was dying it would always start. New battery did make a world of difference.
It has a new crank sensor - I need to check if it gets 2-3v on the wires whilst cranking.

I'm just not getting time to spend on the car. :'(
Karis 110 - The perfect way to get a MTB to the top of the hill.
Power to the pedal!

Myrtle Air Portable - V8
------------------------
MM6IIO
------------------------
http://www.youtube.com/user/ruariboy

http://s826.photobucket.com/home/ruariboy

ruaritreble

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Re: Td5 won't fire
« Reply #13 on: December 01, 2013, 08:59:39 PM »
Does anybody know the part number for the fuel pump retaining ring and the tank cradle?
I thought I would replace them whilst fitting a new pump.

Td5 110
Karis 110 - The perfect way to get a MTB to the top of the hill.
Power to the pedal!

Myrtle Air Portable - V8
------------------------
MM6IIO
------------------------
http://www.youtube.com/user/ruariboy

http://s826.photobucket.com/home/ruariboy

Alarmgard

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Re: Td5 won't fire
« Reply #14 on: December 01, 2013, 11:30:43 PM »
This any good? http://lrcat.com/31/4/53498

Are you changing the pump because you have found it faulty? I note you said you couldn't check the fuel pressure, have you checked area round the fuel pressure regulator for a leak? also worth checking the fuel filter some of the aftermarket ones can rust in less than a year. As mentioned td5's are fussy on fuel, we have had this a few times, we have put extra paint and even tape to try and get a better life out them.

Your welcome to borrow my nanocom if that of use.
« Last Edit: December 01, 2013, 11:36:20 PM by Alarmgard »
Colin Rodger

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