eurocars1
Ready to race!
yes it does
6
Disconnected MAF sensor, engine runs better.
- Thread starter atikovi
- Start date
yes it does
Avdigigeek
Ready to race!
bringing this one back, i'm going to have to trouble shoot some stuff.
To expand on this, the ECU will keep track of two different fuel trims - additive and multiplicative. The additive trim is used at engine idle. Since the engine speed is constant, the trim is the percentage of fuel added to achieve a stoichiometric air-to-fuel ratio. The multiplicative trim is used at engine speeds above idle. Since engine speed varies, a single correction (trim) value isn't valid. As a result, a percentage multiplier correction is used.
For those with VAG-COM/VCDS, the fuel trims are in Block 032 of the Engine control module. The additive trim is in Field 1 (the value all the way to the left). The multiplicative trim is in Field 2 (the value to the right of Field 1). Fields 3 and 4 should be blank.
Positive trims indicate a lean condition (fuel must be added to achieve stoichiometry). Negative trims indicate a rich condition (fuel must be reduced to achieve stoichiometry).
nvturbo
Go Kart Champion
if the car runs better with the MAF disconnected, you likely have a bad MAF sensor. Replace it. I had the same issue and bought mine on eBay for about $102. It's the SAME EXACT one but the Audi "OOOO" rings are scratched off. It is a GENUINE VW/AUDI part.
Hitachi MAF0051 http://www.ebay.com/itm/Hitachi-MAF...r_Truck_Parts_Accessories&hash=item5d55e825c8
nvturbo
Go Kart Champion
If you're still running the stock SMIC, get under the car and check for it. If the piping/couplings/hoses are tight, you have a bad MAF.
Last edited:
Avdigigeek
Ready to race!
Thanks all,
I'm still getting these codes
P0101
P2188
I'm going to check all the piping.
unplug the MAF and check.
Swap the coils and plugs - need it anyway.
clean the air filter
any other ideas anything else I should check?
I'm still getting these codes
P0101
P2188
I'm going to check all the piping.
unplug the MAF and check.
Swap the coils and plugs - need it anyway.
clean the air filter
any other ideas anything else I should check?
Avdigigeek
Ready to race!
I unplugged the maf and seems to run the same, so I'm going to have to do the rest tomorrow when it warms up here.
crnogorac1990
New member
Did you find a solution to your problem?
Sent from my SGH-I337M using Tapatalk
Sent from my SGH-I337M using Tapatalk
If you're asking me, it was the ECM. Looks like the previous owner had been into it so I got a used one and had a VW dealer program it into the car. No problems after that.