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Car wont start.
- Thread starter STU3Y
- Start date
is it not bad for the car to be driven without it connected cos it ticks over ok the main problem was turbo lag and mpg
Well google maf faults it does control the fuel and mpg giving it bad fueling or making it rich, or lean, driving with it off can't do much but finding it faults within 2 mins driving 1 mile with maf connector off
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I did have that thought but then thought hundreda of people on the original thread cant be wrong so didnt think would do any harm. Plus my prob was with starting rather than anything else. I think ill go for a drive tomoz and if it doesnt improve ill try clean out the connector. What is safe to use on the connector itself, not the maf
Just take the connector off for 1 mile drive it the power is there u know it's a maf problem, 1 it can be dirty , 2 might be connectors has wrong grease or too much,
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ill have a play tomoz, its hard to tell cos driving normally its fine its when its a bit more progressive and twisty that you notice all the lag. it takes like 2 seconds to wind up where before it was just there.
A faulty maf will play up so it will be good when it's cold and when the cars warm it will go into limp mode am I right ?
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never suffered limp mode so wouldnt know. But ill plug the connector in and out a few times tomoz to thin out the greae and clean the pins a bit more. Then see how it goes. I never trust that the trip computer is reading right after it got reset with batt.
Dude, do you know anything about this engine? Driving with the MAF unplugged won't help to identify a MAF problem, the car will drove horribly and will be so underpowered a push bike would be overtaking you.
Maf problems need data logging to verify of readings are as expected in relation to boost pressure vs rpm.
Clean all the crap out of the connector and see how it Is. Totally stupid fix that won't help unless you have as problem with the connectors themselves.
Too many variables to chase a few mpg. This can be explained with a reset as as the ecu learns and adapts an awful lot. I expect it will improve...
Not sure on the fuel pipe but if I remember Il take a look at an older 1.9tdi PD lump in a MK4 golf I'm doing the turbo on on the weekend.
Not sure on the fuel pipe but if I remember Il take a look at an older 1.9tdi PD lump in a MK4 golf I'm doing the turbo on on the weekend.
I have double checked this now and there are two green lines on the outer case (the bit that turns) and on refitting they line up with one on the actual bracket so im pretty sure this can only go on the one way.
Done my best to clean the grease out as much as I can, obviously cant get it all out as its deep inside the female connector, but I didn't put much on anyway.
I've also had the MAF off and cleaned it. Now back on and initial idling seems better, yet to drive it though so will update later.
With regards to the starting problem will have to see if reoccurs naturally, if it does then in the garage it will go unless anyone else can comment on the refreshed list above and next steps to take?
Can u put a volt meter probe in the connector and other end probe which u will have to follow where the wire is and see if each wire is reading if that's ok the connector is fine
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I have now been for a long drive, wow what a difference, performance seems to be restored, there is still some lag but think that could just be the difference in between this turbo and my old one. Although most of the drive was motorway, Mpg is back up to about 43 and even saw 44 at one point which I've never seen. Everyone should clean there MAF if they never have regardless of mileage as mine only has 37k
Am happy u fixed something might be worth checking other things now
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