Cranks but won't fire (intermittent problem)? - Alfa Romeo Forum
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Status: DPF? What DPF?
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Join Date: Jun 2010
Location: United Kingdom
County: Lancashire
Posts: 192

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159 2.4JTDm SW

Help Cranks but won't fire (intermittent problem)?

Any assistance gratefully recieved.
It's a 159 2.4 (200) BTW
As the title, starter cranks fine but it just doesn't fire, obviously a fuel problem I guess.
The problem has been intermittent but getting worse. In the past I've swapped relays and fuses in the main (engine bay) fuse box and that seems to have sorted it.
So recently I got a complete (with relays and fuses) replacement fuse box but the problem still persists.
There's no error codes logged and every time I've managed to get Multiecuscan connected it starts the next time! So when I've checked the fuel pressure it says it's fine (because it is!).

Obviously with the problem being intermittent it's really hard to find because it works perfectly, when it's working

Only other info is it used to be more likely to not start when it was cold but now it seems to be whenever.
Any ideas where to look/ what to check?
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cranks , fire , intermittent , problem

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