Question about Peugeot 406

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406 hdi 110 52 reg no no injector pulse

Hi am in need of some help. i have a 406 hdi 110 52 reg and it is a pain i just fixed the lift pump problem with it used a audi fuel pump and it works better that any pump u can buy for these and makes it run well but now because of the cold it just stoped working. So i started from the top and found to no injector pulse so i done the crank sensor but still no joy i have no bsi light on and no ecu falt light on the only thing i can think of is the ecu has burnt out or some thing am at a total loss on what to do if any ideas or help on this matter would be great

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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MobyMech
  • 106 Answers

SOURCE: R reg Megane Scenic non start

Hi

Well, no noid signal and no spark says to me that the crank sensor is at fault.

Does the check engine light come on when you turn on the igntion? If not then the ECU is not waking up.

Regards

Geordie

Posted on Jun 11, 2008

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  • 625 Answers

SOURCE: cold start valve problem

if you have an electric cold start valve make sure to unplug it and if keeps apling fuel with electrical conector unpluged that means the valve is not good, but if not then you have an electronic problem, possible a bad cold start sensor or cold start module or cicuit problem, and might be a time to take it to an electrical shop

Posted on Jun 17, 2008

  • 321 Answers

SOURCE: 99 olds alero 2.4

I'm sure you have installed a fuel pressure gauge and monitored the fuel pressure while the problem is occurring?Another diagnostic tool which is easy to do,is while the problem is occurring,unplug one sensor at a time beginning with the Mass Air Flow first,.if it uses one.Many times,not always,depending on the sensor,if the sensor is taken out of the picture as far as what the PCM is seeing,like unplugging the MAF,the PCM will substitute the missing sensor output with a generic value that will allow the engine to at least run,and if unplugging for example the MAF,the engine idle speed returns to normal,you know you're onto the problem.You didn't mention if the engine ran ok other than the idle problem.As far as checking for vacuum leaks,i use something like brake cleaner or WD 40,more of a liquid,and it does sound like a vacuum leak.Plastic intake manifolds do develop nearly invisible cracks that open up more with heat.Revsisit the possibility.And as for the PCM,it is possible,but more likely a mechanical problem.Lastly,remove an O2 sensor or two before the catalytic convertor,run the engine and see if anything changes.Cheap way to verify the catalytic convertor is flowing and not restricting engine airflow,as i have seen bad cats cause misfire codes and strange problems.Good luck.

Posted on Dec 04, 2008

  • 16 Answers

SOURCE: 2002 Hyundai Elantra not starting

check fuel pump

Posted on Mar 14, 2009

  • 1 Answer

SOURCE: jaguar x300 no pulse at injectors replaced ecu, what else could i

does it have a spark at the spark plug leads? if no it sounds like the crank shaft sensor!!

Posted on Apr 05, 2009

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