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post #6 of 35 (permalink) Old 4th January 2017
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Re: Grand scenic stalls 30 seconds after start up

This really is going be a bit of a guess,,, give you the reasons why
The fuel pump will allow it to start, but then it dies, so though would like to say its the fuel pump,,, no real way of proving it....,The fuel pump could be getting switched off to save the cat, no spark, fuel pump is informed by the ecu to switch off,,,
Thats the fuel side, both give the same scenario...
Now holding the accelerator, this will hold throttle body open, so this again should not be giving an issue,,( as regards being dirty),but running longer, but its still dying, this should disprove the first part of my statement about the fuelpump, but not the second part , being switched off by the ecu ...
So thats pushing me away from a fuel/ throttle body issue.
Because it starts, each and every time, pushing me away from TDC sensor,, and because you can not keep it running, again, not pointing to a Engine Coolant temperature sensor,.
As you can force it to run longer, ..
So now we are on ECU , or fuse box, we will ignore ECU , because, if its gone open circuit inside, the heat generated very quickly, normally does not allow it to kick straight back in, but needs to cool down..
So it now points to fuse box,,,,
Would suggest, getting at the engine bay fusebox, take loads of pictures before you start taking it out, especially the route the wires fit, not on the fuse box, but how they are located, going to the fuse box...
Take your fuse box off the car,
See if you can see any sign of water damage, giving a poor connection..
Take a photo of how the fuses are fitted, now pull each fuse out and clean the contacts up,, Though its unlikely a dirty fuse will be the issue, but while its out have a look.
My thoughts are its your under bonnet fuse box, but just my thoughts,
But that would be what I would be going at, before I did anything else....
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post #7 of 35 (permalink) Old 5th January 2017 Thread Starter
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Thanks for the info will take fuse box out and have a look will keep you updated to what i find many thanks
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Think this could be the problem?
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post #9 of 35 (permalink) Old 7th January 2017 Thread Starter
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Have now replaced fuse box sorted melted wire still stalling as soon as drops below 1000rpm
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Re: Grand scenic stalls 30 seconds after start up

That is the +fuel pump,,,,
Before we go any farther, do the numbers on the fuse box match........

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