Ok, I have a recurring P0103... Mass Air Flow Sensor High Input...

I have cleaned (properly) the MAF, checked for leaks, checked all the connections...all good.. Cleared the code... one minute later, it comes back.

The last thing to check is the actual sensor. Does anyone know how to measure the voltages/resistances across the sensor? What are the standard/expected voltages? Had a look online, can't see anything specific...

Any help would be awesome, as I am getting mega depressed everytime I see the CEL...

Cheers

 

if you have scanalyser (or any scan tool )you can check the actual airflow - if that is around 5g/s at idle and 215 at 8000 rpm than you know it is reading ok .

 

It's hovering around 4.8 to 5.5 at Idle...850RPM... haven't checked the big revs, will do in the morning when all the neighbours are off at work...

Problem is the CEL light...really pissing me off badly...I cant for the life of me see what is wrong!

 

Ok

Really confused now...

Tested the Airflow... 5.2g/s @ 993.... 75 @ 7500... so thats not good... however, that could be due to the nasty dirty air filter reducing the airflow...

Now, here's where it gets interesting.... the car has been lumpy on idle, talking a longer time to turn over...and missing a beat or two above 6000 RPM...

I used ScanTool 1.1.3 which gives me a completely different DTC code than Centrafuse... it gives me P0353...which is the 'C' Coil failing....which makes sense giving the lumpy engine.... fark!!!! knew I should have bought a BMX instead...Chain + Wheel = Done.

 

Would think you need a new MAF....

 

A nasty dirty air filter makes teh baby jeezus cry .....