30-03-2016, 10:13 PM
(This post was last modified: 30-03-2016, 10:15 PM by Mark Glaister.)
Is everyone sitting comfortably? Then I'll begin....
I'm currently "borrowing" (like all sons do) my dads 52 reg berlingo multispace with the 2.0 hdi engine, running Siemens engine management, which until very recently, has been no trouble at all, the only real problem has been slow starting from cold, once hot it started with no trouble.
Because of this it was decided that the glow plugs should be changed, I dutifully did so, cleaning around the area with gunk beforehand.
All of which made absolutely no change to the way the car started from cold.
Unfortunately the car now developed a hesitation when the throttle was applied, I assumed that water had got into a connector when the gunk was rinsed away.
So all electrical connections were checked and cleaned......the hesitation was still there.
The throttle position sensor was then replaced......no change,
The camshaft sensor was replaced.......no change,
The crankshaft sensor was changed (a real bugger to get to).......no change.
When driven, the car behaved normally most of the time, but once in a while there would be no response from the throttle, you could operate the clutch and apply the throttle and the engine would rev again, or let the revs drop to below 2000 RPM and it would pick up again.
Then it began to have trouble starting.
The starter motor was probably on its last legs when the slow cranking from cold began a few years ago, but finally died half way up my drive.
A new starter was sourced and fitted and hey presto, it spun and started after about two cranks from cold ??
BUT the hesitation was still there......
From this point on it wasn't starting like it should, cranked like a dream but would not catch.
Finally it would not start at all!
All electrical connections were re-checked....ok
Fuel was getting to the pump, no air or contaminants were found in the filter.
I finally called in a mobile mechanic who connected his diagnostic computer to the OBD port and reported that all sensors were working. He then spent two hours checking and re-checking all the electrical connections and components, to no avail.
He could get the engine to fire, but only with easy-start, which was simply burning instead of the fuel from the injectors.
I can't remember the code, but it was saying "injector fault", the actual injectors were not touched, except when the plugs were disconnected to get at the glow plugs, the fuel pressure sensor was showing 4200-ish PSI, so fuel pressure is present in the rail, just not getting to the engine.
The mechanic thought it was a problem with either the wiring to the injectors, the fuel pump not giving enough pressure, or the ecu.
I have been looking through pretty much every "2.0 Hdi not starting" post on here and can't see any specific the injector wiring loom.
So.......Has anyone ever had any trouble with the actual injector wiring in a 2.0 Hdi?
And if so, do you have any advice, wiring diagrams, etc that would help me.
Many thanks in advance,
Mark.
I'm currently "borrowing" (like all sons do) my dads 52 reg berlingo multispace with the 2.0 hdi engine, running Siemens engine management, which until very recently, has been no trouble at all, the only real problem has been slow starting from cold, once hot it started with no trouble.
Because of this it was decided that the glow plugs should be changed, I dutifully did so, cleaning around the area with gunk beforehand.
All of which made absolutely no change to the way the car started from cold.
Unfortunately the car now developed a hesitation when the throttle was applied, I assumed that water had got into a connector when the gunk was rinsed away.
So all electrical connections were checked and cleaned......the hesitation was still there.
The throttle position sensor was then replaced......no change,
The camshaft sensor was replaced.......no change,
The crankshaft sensor was changed (a real bugger to get to).......no change.
When driven, the car behaved normally most of the time, but once in a while there would be no response from the throttle, you could operate the clutch and apply the throttle and the engine would rev again, or let the revs drop to below 2000 RPM and it would pick up again.
Then it began to have trouble starting.
The starter motor was probably on its last legs when the slow cranking from cold began a few years ago, but finally died half way up my drive.
A new starter was sourced and fitted and hey presto, it spun and started after about two cranks from cold ??
BUT the hesitation was still there......
From this point on it wasn't starting like it should, cranked like a dream but would not catch.
Finally it would not start at all!
All electrical connections were re-checked....ok
Fuel was getting to the pump, no air or contaminants were found in the filter.
I finally called in a mobile mechanic who connected his diagnostic computer to the OBD port and reported that all sensors were working. He then spent two hours checking and re-checking all the electrical connections and components, to no avail.
He could get the engine to fire, but only with easy-start, which was simply burning instead of the fuel from the injectors.
I can't remember the code, but it was saying "injector fault", the actual injectors were not touched, except when the plugs were disconnected to get at the glow plugs, the fuel pressure sensor was showing 4200-ish PSI, so fuel pressure is present in the rail, just not getting to the engine.
The mechanic thought it was a problem with either the wiring to the injectors, the fuel pump not giving enough pressure, or the ecu.
I have been looking through pretty much every "2.0 Hdi not starting" post on here and can't see any specific the injector wiring loom.
So.......Has anyone ever had any trouble with the actual injector wiring in a 2.0 Hdi?
And if so, do you have any advice, wiring diagrams, etc that would help me.
Many thanks in advance,
Mark.
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