Lowfield
Registered User
- Joined
- May 15, 2017
- Messages
- 108
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I have owned my tqs for a couple of years now.
Went on the mot history checker the other week and noticed (historically) it was having trouble passing first time on emissions.
It just crept in for me the last couple of times thankfully.
Looking through my paperwork which came with the car I see 2 x replacement cats in the 3 years prior to my ownership. Running too rich destroying cat?
The car was chipped in 2006 by AMD.
So ... I got the vagcom out to look at intake air mass on tickover which is 2.64g/s ... Low?
Group 4 Idle Speed Stabilisation
Intake Air Mass (idle/learned) 1.95g/s. The specification is -1.1 to 1.1g/s.
This was the only thing that was out of parameter.
Intake Air Mas (load/ learned) was 0.00g/s. Has this been coded out me thinks.
My question is 2 fold.
Is my maf sensor goosed or.. are the above learned sums chip related?
Thanks in advance
Simon
Went on the mot history checker the other week and noticed (historically) it was having trouble passing first time on emissions.
It just crept in for me the last couple of times thankfully.
Looking through my paperwork which came with the car I see 2 x replacement cats in the 3 years prior to my ownership. Running too rich destroying cat?
The car was chipped in 2006 by AMD.
So ... I got the vagcom out to look at intake air mass on tickover which is 2.64g/s ... Low?
Group 4 Idle Speed Stabilisation
Intake Air Mass (idle/learned) 1.95g/s. The specification is -1.1 to 1.1g/s.
This was the only thing that was out of parameter.
Intake Air Mas (load/ learned) was 0.00g/s. Has this been coded out me thinks.
My question is 2 fold.
Is my maf sensor goosed or.. are the above learned sums chip related?
Thanks in advance
Simon