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Old 03-04-19, 03:11 PM   #1
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Default Non starter

Wondering if anyone has any ideas on a crank no start 207 Vti 1.4 2009. Was running fine one day but after the battery was disconnected then no start. What's been done:

Diagbox shows only C990 which is the relay for the fog lamp
Live data shows cranking at 180rpm
Battery is fairly old but holds a charge reading 12.6v
All fuses are good
Several attempts at a BSI reset
Keys are recognised
ECU & engine fuse box are clean & free of any water damage

Can hear the fuel pump priming with ignition on
Sprayed easy start into air intake
Have good consistent spark on all 4 coils (only tested from coils as i can't get the plugs out at the moment)
Air flow is not restricted by anything obvious
Compression sounds good with cranking but haven't tested with a gauge

5V reference seems good on the sensors i can access. However on the ECT I have 3.3v not 5v. This is with it unplugged & measured from battery -ve. However the coolant temp does read accurate at 12c. Have tried unplugging the ECT but still no start.


The car had an engine swap over a year ago & it did this once before shortly after that, same sudden no start. I sent the ECU off then for repair but it came back with no faults found. However after i put it back in the car it mysteriously started straight away & has been running fine all this time, until now.

Im thinking either an internal intermittent fault with the ECU or BSI, an ignition timing problem or bad wiring somewhere, no codes however. Seems odd though that it's happened again now right after i disconnected the battery. I haven't tested the power & grounds to the ECU as i don't have the wiring diagram for it.

Thanks for any advice

Last edited by mckenzie; 03-04-19 at 03:25 PM.
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Old 03-04-19, 05:53 PM   #2
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can you give it a tow bump start somehow?
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Old 03-04-19, 06:03 PM   #3
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Not easily its in a bit of an awkward place. What are you thinking, would it confirm or eliminate something ? Cheers
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Old 03-04-19, 06:13 PM   #4
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Have you checked that the camshaft is turning when cranking? Maybe cambelt failure?
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Old 04-04-19, 09:27 AM   #5
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No idea if this will work and you are not ment to do it, but turn ignition on then off and quickly remove a battery lead. I found on the daughters car this kind of reset the ecu and car would hunt for a short time.
Just hope it doesnt cause more problems but i have done it many times, put battery terminal back on fast and dont let it spark and crackle.
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Old 04-04-19, 02:33 PM   #6
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Quote:
Originally Posted by stripe88 View Post
No idea if this will work and you are not ment to do it, but turn ignition on then off and quickly remove a battery lead. I found on the daughters car this kind of reset the ecu and car would hunt for a short time.
Just hope it doesnt cause more problems but i have done it many times, put battery terminal back on fast and dont let it spark and crackle.
Well I got nothing to loose now. You've done this on no start modern Peugeot's right?

Last edited by mckenzie; 04-04-19 at 02:52 PM.
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Old 04-04-19, 03:40 PM   #7
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NO DONT DO THAT you are likely to loose your key codes doing that !!!
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Old 05-04-19, 10:01 AM   #8
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as said it is not recomended but i have done it so many times with no problems on the vti, but did have another idea which i have used on other cars and that is to pull the plugs on the cam sensors to force it into limp home mode.
Still thinking a ecu reset should be the first step.
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Old 05-04-19, 11:18 AM   #9
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Quote:
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Not easily its in a bit of an awkward place. What are you thinking, would it confirm or eliminate something ? Cheers
Yep. I had the same problem on my 308. Tough to start with the key. No pattern to it.

But would bump start first time every time.

Nothing showing up on Planet. Battery and all electrics, fuel pump fine

Replaced starter, even though it sounded fine - 100% success after that.
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Old 05-04-19, 01:15 PM   #10
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Thanks for the help, definitely some things to consider. My spark plug socket will arrive soon so i can properly check the plugs to see if they are getting wet. i might try unplugging the MAP too, does anyone know exactly how to get to it ? Thanks

Last edited by mckenzie; 05-04-19 at 01:31 PM.
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