Noticed my suspension was sagging on one side in the morning. I suspected a bad calibration. Walked thru GAP's Guided Calibration routine. It was super easy. Now I wait...to see if that fixes the sag. Not sure why the calibration would get lost. That's phase 2 of my investigation...but the IIDTool is awesome.

 

Yea I going to order it.
I would love to see if I could use it to increase my GPH
im hoping the new OEM MAS will increase the GPH which is presently around 13.5 per gallon. It’s never seen regular gas always run 93 octane

 

Ok I changed out with a new MAS OEM and that corrected the problem
stay away from the cheap aftermarket MAS

 

A learning experience
I used British Atlantic for the purchase. I went with the OEM MAS which came with a LandRover part number in a LR box. It was an exact replacement a Densco unit
BA sells a Densco advertised unit which is the same as the OEM for almost 100$ less
When I questioned the British Atlantic sales person why the same unit was less then the OEM unit he politely told me I paid almost 100$ more for the box it came in.
everyone sooner or later takes a walk in the woods oh no refund
its fixed

 

Yeah, those LR stickers are expensive. Thats why I say the OEM unit is made by Denso, a Toyota dealer can get you a MAF sensor for less than $100. This is even flat out mentioned in the LR training material actually.

 

What is the code you were getting?

 

OK guys got a new problem on a trip up north to New Hampshire thousand miles halfway through it. I got a reduced engine performance and some crazy traffic slowed it down happened again several times I slowed it down to 55 limped up the rest of the trip did some research And place the air filter was clean cleaned a mess after sensor. It wasn’t bad little bit check for vacuum leaks, put a can of liquid molly, fuel fuel, injector cleaner waiting to see if that does anything happening a lot. Now you get on it on an entrance ramp, and she immediately bangs and goes into reduced engine performance. I know there’s a lot of things that could cause it that coil pack spark plug flow sensor air filter, hooked up my analyzer, which I carry with me on the road the most prevalent code on the list first is five times as I believe a 10001–11 I think I pretty much done all I can do at this point on a run into a Land Rover dealership any ideas before I throw all that money down the toilet?

 

Feels like a MAF to me. Have tried cleaning it since this started?

I had a similar issue on mine. Ran fine at 2k or so elevation then climbing over the Rockies at about 8k feet it banged like a gunshot. Was able to baby it and once at lower elevations it ran ok but not great. A new MAF fixed it.

Basically it sounds like the thin air could be exposing something

 

I replaced it a couple of years ago with an OEM unit because I was getting a check engine light it resolved the problem at that time. This is different getting on an entrance ramp that increased acceleration is when it most happens going into overdrive or down, shifting to pick up speed quickly immediately sounds a bell and gives an indicator of reduced engine performance. It idles quiet as a mouse, no shuttering in park or it speeds up to 50 to 55 miles an hour. But as soon as I get on it and it downshifts to pick up speed, it goes into reduced engine performance mode. i’m wondering if I picked up some bad gas halfway through this trip this morning I added a can of liquid Molly fuel, injector cleaner, and 10 gallons of gas on top of it premium gas only in this truck since the day was new.?? I have an appointment bringing it in in on Thursday afternoon to Land Rover quite honestly the only thing I’ve done to this truck is spark plugs at 75,000 miles because it always ran so good.It may need software updates fuel injectors cleaned or might need injector clean and flush or even coil packs ???

 

A 10001-11 code? Did you mean a P0101 code? Was that after you replace the MAF with the OEM one from Atlantic British?