Thread: TD5 MAF stuffed??

Back ground first:

Have a 2000 td5 auto with remap (on NNN ECU), D2a intercooler, 2.5 inch hi flow exhaust, lifted with bar work etc.

Been having issues with extremely high EGT's which I thought was just the particular remap I got (is capable of flying up to 1000 degrees if I don't watch the gauge!!!!!!!!), but as I did not fit the EGT gauge till after the remap I put the original MSB ECU in to compare and even that hit the maximum 750 degrees (not sure if that is normal on standard map?) - EGT probe pre-turbo.

I have also been getting increasingly bad fuel consumption in the range of 17-20L/100km... Vehicle has been getting heavier and higher, but I have heard of td5's higher and heavier than mine getting better fuel consumption.

Recently I was reading about stuffed MAF sensors and thought I would check mine as I am sure this could cause excessive fuel consumption and high EGT's.

Hooked up the hawkeye and that showed flow to be about 59 at idle, which I believe is about right. I then checked the resistance between the pins on the MAF which gave readings of:

Pins 1 & 2 = 16.85 k ohms
Pins 1 & 3 = 5.8 m ohms
Pins 2 & 3 = 3.4 m ohms

Am I right in believing the second and third readings are WAY too low and show that my MAF is in fact stuffed???

Thoughts anyone??

I'd agree with Bronson, give it a clean with contact cleaner and re test. Also if the hawkeye allows, get some airflow readings when you are driving, which will give a second opinion. They should range from mid 100's to mid 500's

With respect to fuel consumption I've had a look at my fuel figures since I replaced my MAF in September and I'm seeing about a 5% improvement in fuel consumption. Around town is now low 12l/100km and towing the van is 15l/100km. My D2a is totally standard.

Cheers

Steve