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Please play nicely.  No one wants to listen/read a keyboard warriors rants....

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Author Topic: Starting troubles....  (Read 22003 times)

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stuvaux

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Re: Starting troubles....
« Reply #45 on: 17 March 2014, 20:49:07 »
Quote from: Taxi Al on 17 March 2014, 20:45:12
Depending on the type/location of lpg tank, liberating the petrol pump could be fun :-\

Might be easier to test at the manifold end :y

Luckily the LPG tank is in the spare wheel well, so I can still get to the pump via the cover plate in the boot floor (Estate)
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05omegav6

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Re: Starting troubles....
« Reply #46 on: 17 March 2014, 20:50:37 »
Small mercies :y
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stuvaux

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Re: Starting troubles....
« Reply #47 on: 17 March 2014, 20:56:24 »
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stuvaux

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Re: Starting troubles....
« Reply #48 on: 23 March 2014, 20:25:23 »
Flow rate seems okay.

The problem does seem to have improved slightly. Starting is most difficult from cold, not too bad from hot. It does also seem to tick over okay now too. When driving there is definite hesitation, some times worse than others. I drove it for 7 mikes on petrol to see if it may clear, but hesitation continued.

I am not sure what to try next. Still no codes coming up...  :-\
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stuvaux

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Re: Starting troubles....
« Reply #49 on: 27 March 2014, 20:48:03 »
I am still wondering if it may be the MAF...can anyone confirm if it would run fine on LPG even if the MAF was faulty?

Thanks
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omega3000

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Re: Starting troubles....
« Reply #50 on: 27 March 2014, 21:24:56 »
Quote from: stuvaux on 23 March 2014, 20:25:23
Flow rate seems okay.

The problem does seem to have improved slightly. Starting is most difficult from cold, not too bad from hot. It does also seem to tick over okay now too. When driving there is definite hesitation, some times worse than others. I drove it for 7 mikes on petrol to see if it may clear, but hesitation continued.

I am not sure what to try next. Still no codes coming up...  :-\

Have you checked the coil pack  :y
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stuvaux

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Re: Starting troubles....
« Reply #51 on: 27 March 2014, 22:48:11 »
Quote from: Emd on 27 March 2014, 21:24:56
Quote from: stuvaux on 23 March 2014, 20:25:23
Flow rate seems okay.

The problem does seem to have improved slightly. Starting is most difficult from cold, not too bad from hot. It does also seem to tick over okay now too. When driving there is definite hesitation, some times worse than others. I drove it for 7 mikes on petrol to see if it may clear, but hesitation continued.

I am not sure what to try next. Still no codes coming up...  :-\

Have you checked the coil pack  :y

Coil pack was replaced 6 months ago. Also, the car runs fine on LPG
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stuvaux

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Re: Starting troubles....
« Reply #52 on: 03 April 2014, 17:06:13 »
New update!

Codes 73 and 74 are now coming up, which are Mass Air Flow Sensor Voltage Low & Mass Air Flow Sensor Voltage High.

So does this mean the MAF is definitely faulty? I thought the running on LPG would have also been affected  :-\
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05omegav6

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Re: Starting troubles....
« Reply #53 on: 04 April 2014, 01:26:43 »
That does sound like the Maf sensor is on its way out :-\ does unplugging it make any difference?

Maf might not affect lpg running as the system possibly has its own pressure/flow sensor  :-\
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stuvaux

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Re: Starting troubles....
« Reply #54 on: 04 April 2014, 14:02:04 »
Quote from: Taxi Al on 04 April 2014, 01:26:43
That does sound like the Maf sensor is on its way out :-\ does unplugging it make any difference?

Maf might not affect lpg running as the system possibly has its own pressure/flow sensor  :-\

Unplugging it does make it run a little better. Also, it seems to run fine on petrol once warm. I have ordered a used (genuine) MAF sensor now, just have to wait for it to get here, probably early next week now
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stuvaux

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Re: Starting troubles....
« Reply #55 on: 08 April 2014, 17:34:51 »
Replacement MAF fitted....car is still the same  :(. Once warm, it ticks over quite normally, but has a lot of hesitation when driven.

The codes (73 & 74) are still there, so is there anything else this points to?
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stuvaux

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Re: Starting troubles....
« Reply #56 on: 08 April 2014, 20:48:16 »
All pipes/connectors around MAF area look to be fine. Not sure what next to try now  :-\

Any advice gratefully received  :y
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stuvaux

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Re: Starting troubles....
« Reply #57 on: 18 April 2014, 17:37:15 »
Still having the same problem. Sometimes car will not start at all though this is rare (only happened twice). I really am unsure what to look at next. The MAF codes are still there, but I was wondering what other faults this may point to? No other codes are coming up
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stuvaux

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Re: Starting troubles....
« Reply #58 on: 11 June 2015, 23:30:06 »
Hi all,

Just posting this as the problem is now cured!

The problem was the fuel pipes underneath the metal cover, the ones that go to the pump. It is normally the top of the cover that corrodes. On mine, the pipes both had splits in them (almost right at the top, underneath cover). Simple fix by carefully cutting off the damaged bit of pipe  :y

Hope this may help someone who gets similar symptoms

Stu
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