Ongoing lean code issue - mafs and where can i buy one?!

id101

id101

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Joined
Dec 13, 2017
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After having many air/vacuum pipes, pcv, fuel filter, smoke test showing no leaks, fuel pump and regulator replaced i'm looking at changing the MAF, it was swapped out earlier in the cycle for another second hand one but that could have been a red herring.

So to my question, i understand its best to get a siemens or bosch MAF but where can i order one from? I am finding it difficult to find one.

Its for a 02reg z3 3.0i

Any suggestions or does anyone know the part number?

Tanks in advance
 
Are the Tanks ready for when you see the price of that new MAF ?
 
As eyewatering prices are for oem Mafs it is the way to go to be assured that it works out of the box. Cheap non oem brands are rarely good or last long, buy cheap you end up buying twice.
 
id101 said:
To be honest I've already thrown a ton of cash at it running out of options
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My lean codes ended up being a relatively cheap inlet cam angle sensor, strangely enough the code reader told me so, a bit odd really unless I inadvertantly fixed another issue whilst replacing the sensor.. Anything is possible with my old girl.....:thumbsup:
 
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ExMX5owner said:
My lean codes ended up being a relatively cheap inlet cam angle sensor, strangely enough the code reader told me so, a bit odd really unless I inadvertantly fixed another issue whilst replacing the sensor.. Anything is possible with my old girl.....:thumbsup:
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Did the car generally drive fine? Mine doesn't seem bad at all, but after resetting code it tends to come back on every second time I drive it afterwards, mileage doesn't seem to affect it
 
Sajk said:
What were the codes out of interest. Thanks.
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I have just these codes left now p0171 p0174


The origins of this long story lie in these threads:

zroadster.org

Z3 3.0 codes 0171, 0174,1083 and 1085

Hi all, I've just bought z3 3.0 and on the way back to the Midlands from London I get an engine light. It seems to run very lumpy, then smooth, then bad, then fine, I also noticed on occasion when I switch off a second or so after it stops there is a like a relase of pressured air, I...
zroadster.org zroadster.org


zroadster.org

z3 3.0i and odb reader/odb fusion

For my 02 plate z3 3.0i I have a bluetooth reader and a copy of odb fusion on my phone but i am unable to get the software to recognise the car. My old corded reader connects fine reads codes etc. whereas the bluetooth connector and the software connect but the software will not recognise my...
zroadster.org zroadster.org
 
id101 said:
Did the car generally drive fine? Mine doesn't seem bad at all, but after resetting code it tends to come back on every second time I drive it afterwards, mileage doesn't seem to affect it
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A little stalling at idle occasionally , but fine otherwise..
 
Air leaks the usual cause of those Lean codes, smoke test it to find any leaks. If that checks out then suspect the Maf but only replace that with oem brands Bosch or Siemens, don't buy cheap Mafs.
 
colb said:
Air leaks the usual cause of those Lean codes, smoke test it to find any leaks. If that checks out then suspect the Maf but only replace that with oem brands Bosch or Siemens, don't buy cheap Mafs.
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Yeah mad is where I've got to after having had a load of pipes replaced and a smoke test.

From what I've read on various forums that also use the same m54b30 engine that a Siemens VDO is open but also a bremi is an option
 
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