Topic: Merc MAF code (Read 129 times)

Jimbob · « **on:** **Yesterday** at 16:53:14 »

Ive got a P010162 code : MAF sensor 1 has a maulfunction. The signal comparision is faulty.

Car is in Limp, EML on and wont clear
W212 OM651 engine

Ive checked all the hoses I can see, had both boost pipes off, HP one was changed last year as it burst.
Can see, or feel, or anyway detect an air leak anywhere. Used light, feel, very basic smoke test (bottle full of smoke near inlet)

Any ideas what next? I fear its an inlet manifold swap which doesnt look huge fun.
Luckily ive a little project car I can drive while I work on this.

Some reports from my Topdon tool - expand professional report section
https://euait.x431.com/Home/Report/reportDetail/diagnose_record_id/2b77a267getZ3bAEDhAEnROMoG/report_type/D/l/en-us

https://euait.x431.com/Home/Report/reportDetail/diagnose_record_id/211a1316getZ3bAEDhAELrDhnR/report_type/D/l/en-us

Doctor Gollum · « **Reply #1 on:** **Yesterday** at 17:37:03 »

Has the air intake hoovered up some water?

Jimbob · « **Reply #2 on:** **Today** at 05:19:00 »

Has the air intake hoovered up some water?

Nope, not even been through a big puddle

Marks DTM Calib · « **Reply #3 on:** **Today** at 07:36:44 »

DPF diff pressure very low and yet there is a back pressure of over 1 bar?

What state is the EGR?

Jimbob · « **Reply #4 on:** **Today** at 08:27:17 »

DPF diff pressure very low and yet there is a back pressure of over 1 bar?

What state is the EGR?

Untouched in my ownership!

TheBoy · « **Reply #5 on:** **Today** at 08:32:17 »

Fill level of DPF = 180% ? That doesn't sound right, although I know nothing about diags on that car.

Jimbob · « **Reply #6 on:** **Today** at 08:50:23 »

Fill level of DPF = 180% ? That doesn't sound right, although I know nothing about diags on that car.

I beleive ash / soot differences, and full is about 400% but could be wrong