325ti stalling when cold
Discussion
Hi everyone,
My 325ti stalls occasionally when cold. I'll pull up to the first intersection after leaving home in the morning, foot on the clutch in first about to let the clutch out to pull away and the engine will cut out. Even happens sometimes when approaching the intersection at <5mph. I've fitted a new CCV, MAF, and checked the intake and injectors/fuel system.
It'll only happen once, then drive fine from then onwards.
Can anyone think what might be causing this issue?
It's an M54B25 engine, in case you're wondering.
Thanks!
My 325ti stalls occasionally when cold. I'll pull up to the first intersection after leaving home in the morning, foot on the clutch in first about to let the clutch out to pull away and the engine will cut out. Even happens sometimes when approaching the intersection at <5mph. I've fitted a new CCV, MAF, and checked the intake and injectors/fuel system.
It'll only happen once, then drive fine from then onwards.
Can anyone think what might be causing this issue?
It's an M54B25 engine, in case you're wondering.
Thanks!
If it were me I'd check the following:
-DISA valve ; unlikely but a vacuum leak could cause the same thing
-MAF to inlet boot ; if it's looking old I'd change it.
-idle Control Valve ; I'd clean it first personally. It could be sticking.
Do you have INPA? If so have you checked for the codes?
-DISA valve ; unlikely but a vacuum leak could cause the same thing
-MAF to inlet boot ; if it's looking old I'd change it.
-idle Control Valve ; I'd clean it first personally. It could be sticking.
Do you have INPA? If so have you checked for the codes?
SebringMan said:
If it were me I'd check the following:
-DISA valve ; unlikely but a vacuum leak could cause the same thing
-MAF to inlet boot ; if it's looking old I'd change it.
-idle Control Valve ; I'd clean it first personally. It could be sticking.
Do you have INPA? If so have you checked for the codes?
I've replaced the inlet boot with a silicone single-piece item, and when doing so checked the DISA and it was spot on. Where is the ICV? Is it easy to access/check/clean?-DISA valve ; unlikely but a vacuum leak could cause the same thing
-MAF to inlet boot ; if it's looking old I'd change it.
-idle Control Valve ; I'd clean it first personally. It could be sticking.
Do you have INPA? If so have you checked for the codes?
.
.Look for a Creator code reader on eBay - 35 to 50 quid depending which exact model you go for, take a lot of guesswork out of diagnosing problems. Pays for itself in two uses bearing in mind most garages charge you half an hour's labour just for a code read 'diagnostic'.
At a guess the first place I'd point a finger is at the idle control valve or maybe the cam or crankshaft position sensor. The ICV won't throw a code but the other two will.
At a guess the first place I'd point a finger is at the idle control valve or maybe the cam or crankshaft position sensor. The ICV won't throw a code but the other two will.
Edited by vsonix on Monday 10th July 23:37
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