Re: Transit p1211 & p0251
Mark Robins | Message modified by user UKAT1448 September 19, 2011, 5:16 pm
Hi Liam, The pressure reg normally will reach 4volts + under load this indicates pressure increase in the rail, the (P)ulse (W)idth (M)odified signal should show max off time (signal is broadest at top of waveform) which looks about right in the waveforms shown. Normally the IMV defaults to full pressure when disconnected so in it's max off state = max flow hence pressure buildup. Is there only an IMV on this model? some have a pressure regulator and IMV (dual point control) single point control (IMV only) will have a pressure relief valve fitted. (see my post fuel pressure blues where I had a problem with this. Did you take the 1st and 2nd waveforms when the fault occurred? We need to see what the PWM is doing at max pressure (is it calling for high or low pressure) if it's calling to lower the pressure then that means it cant control hence probably the IMV. Sorry for all the questions, I would expect the IMV to go max on to try to reduce the pressure if it's getting to high. Mark
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Message Thread | This response ↓
Ford Transit TDCi 2006 - Codes P1211 & P0251 - Fixed # - Liam Hourihan September 14, 2011, 11:40 pm
- Re: Transit p1211 & p0251 - Mark Robins September 15, 2011, 8:31 am
- Re: Transit p1211 & p0251 - Liam H September 19, 2011, 12:09 pm
- Re: Transit p1211 & p0251 - Mark Robins September 19, 2011, 5:14 pm
- Re: Transit p1211 & p0251 - Sam green September 19, 2011, 8:12 pm
- Re: Transit p1211 & p0251 - Liam Hourihan September 20, 2011, 12:47 am
- Re: Transit p1211 & p0251 - Mark Robins September 20, 2011, 8:14 am
- Re: Transit p1211 & p0251 - Liam Hourihan September 21, 2011, 12:19 am
- Re: Transit p1211 & p0251 - lee mackintosh September 22, 2011, 9:02 am
- Re: Transit p1211 & p0251 - Mark Robins September 22, 2011, 4:40 pm
- Re: Transit p1211 & p0251 - Lee mackintosh September 22, 2011, 5:56 pm
- Re: Transit p1211 & p0251 - mark Robins September 23, 2011, 1:39 pm
- Re: Transit p1211 & p0251 - Lee Mackintsoh September 23, 2011, 2:41 pm
- Re: Transit p1211 & p0251 - Carl Ford September 23, 2011, 8:08 pm
- Re: Transit p1211 & p0251 - Liam Hourihan September 24, 2011, 9:27 pm
- Re: Transit p1211 & p0251 - Lee Mackintosh September 24, 2011, 10:40 pm
- Re: Transit p1211 & p0251 - Liam Hourihan September 24, 2011, 11:47 pm
- Re: Transit p1211 & p0251 - Kevin Apps September 25, 2011, 12:29 am
- Re: Transit p1211 & p0251 - Dave Hill September 25, 2011, 1:01 pm
- Re: Transit p1211 & p0251 - Kevin Apps September 25, 2011, 2:57 pm
- Re: Transit p1211 & p0251 - Dave Hill September 25, 2011, 7:13 pm
- Re: Transit p1211 & p0251 - Liam Hourihan October 31, 2011, 9:37 pm
- Re: Transit p1211 & p0251 - Lee Mackintosh October 31, 2011, 10:28 pm
- Re: Transit p1211 & p0251 - Liam Hourihan November 8, 2011, 11:00 pm
- Re: Transit p1211 & p0251 - UKAT2983 November 9, 2011, 7:24 am
- Fixed # - Liam Hourihan December 7, 2011, 10:58 pm
- Fixed # - Dave Hill December 11, 2011, 2:16 pm
- Fixed # - Liam H December 13, 2011, 11:32 pm
- Fixed # - Dave Hill December 15, 2011, 11:12 pm
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