Buddy has a D1. 95 i think. Anyway his MAF was bad and replaced it. With new MAF it still starts runs bad and dies after about 10sec. If he runs the truck without the MAF it runs fine. He is stuck on this one. Anyone lend some ideas?

 

is it actually "new" or just new to him? can you confirm the model year as they changed after '95?

 

it is a 95. the new maf is second hand

 

Fess up Joe, you're a closet DI'er arent you?

 

haha, I know the Disco's are very picky about the brand of MAF you put on. I know it is much better to not get a generic brand.

 

Maybe a silly question but how does he know it is any good? was it tested? was it cleaned?

It should say Hitachi or Lucas 5 AM on the top of the MAF, right next to the elec. plug.

Clean the MAF (when it is cold) by lightly spraying MAF specific cleaner into the small hole on the side of the primary flow chamber. Don't poke the tube from the cleaner can into the hole or you could damage the two delicate wires in there. You're just cleaning a small wire... not much needed. Also, it is best to align the MAF vertically so the cleaner and residue can run out the bottom of the chamber. Let it dry completely before plugging it back in.

The test is fairly easy but whenever one works on these they need to be delicate. With a multimeter and some light breath do the following to see if it is even good....Ignition should be on but engine NOT running. Connect the meter between the the ground (red black wire) and air flow sensor output (blue green wire)... now lightly blow into the sensor hole... the voltage should rise quickly with your breath if it is good. If it is good, reconnect the air filter box and start the engine. Using the same wires to test voltage... you should see about 1.7 volts at idle and just above 4 volts under high rpm's.

Hope this helps... good luck. Let me know if it is bad.... I have an extra few layin' around.