Quadcammer

Hey gang, spoke to soon about the car being insanely reliable.

I felt like the car was running a bit funny. Not bad, but just a bit off.

I checked the long term fuel trims and they are about 6.5 on bank 1 and 7.2 on bank 2. I.e the car is having to add 6.5 and 7.2% more fuel than expected. No lean codes yet but not too far off

So either vac leak, underreporting maf or weak fuel pump.

Going to smoke test but can anyone give me hints on common vac leak location since there are soo many bloody vac lines back there

Also does anyone know what the maf should be reporting at idle and under max load in terms of g/s?

Thanks all

Basal Skull

Can't help much but some thoughts
Would have thought you would get some codes if maf problem, I think the output is 0-5v but don't know what that corresponds to in grams/sec?
6.5 and 7.2 doesn't sound too bad?
In our cars, is it a vac leak vs a boost leak and would it cause overall lean vs rich problem?
Do you have cats? clogged?
I'd check/change the easiest thing first like the fuel filter...

WingChun

Could try cleaning the MAF, helped on mine when it was running ****!