JC600

Well-Known Member

• Jul 25, 2018

• #1

Before any one asks, yes I've done a search......but most threads are inconclusive.

Drives fine unplugged....tried 2 genuine LR MAFs & one Bosch. Map sensor is new, no boost leaks, IAT sensor is new, done full pin out to test wiring (no issues), turbo actuator is free, boost actuator tested, egr has bypass........on live read MAF is only 152 (should be min of 320). Won't rev over 2000rpm, very laboured too......once warmed up, revved freely pasted 3000rpm......tried to drive hesitant at 2k rpm, then shot off......then wouldn't go over 2k rpm, and back to 152 (was 520 once warmed up at idle). Anyone had a similar problem.

Thanks

 

T

td4van

Well-Known Member

• Jul 25, 2018

• #2

Can you see what the EGR duty cycle is when the air flow is low?

 

JC600

Well-Known Member

• Jul 25, 2018

• #3

td4van said:

Can you see what the EGR duty cycle is when the air flow is low?

Click to expand...

It has an EGR bypass fitted.

 

T

td4van

Well-Known Member

• Jul 25, 2018

• #4

Ok so it’s not egr stuck which is impacting air flow then

Missed that info in original post sorry

On T4 there’s a MAF reset option for adaptions which may help if you have access to one

 

JC600

Well-Known Member

• Jul 25, 2018

• #5

td4van said:

Ok so it’s not egr stuck which is impacting air flow then

Missed that info in original post sorry

On T4 there’s a MAF reset option for adaptions which may help if you have access to one

Click to expand...

No problems, I'll ask about. See if anyone I know has one........is there anything other than T4 that will do it?

 

JC600

Well-Known Member

• Jul 26, 2018

• #6

td4van said:

Ok so it’s not egr stuck which is impacting air flow then

Missed that info in original post sorry

On T4 there’s a MAF reset option for adaptions which may help if you have access to one

Click to expand...

All fixed, thanks........reset MAF parameters on Launch diagnostics. Runs sweet as a nut now.

 

G

guineafowl21

Well-Known Member

• Jul 26, 2018

• #7

JC600 said:

Launch diagnostics

Click to expand...

Which model do you have? Any chance of a quick review? We’re always interested in diagnostics.

 

Skinny Mike

Well-Known Member

• Jul 26, 2018

• #8

@JC600
Any chance you can edit the title of this thread and add "solved" to it.
Makes its easier for peeps to search it in the future.
Cheers
Mike

 

JC600

Well-Known Member

• Jul 26, 2018

• #9

guineafowl21 said:

Which model do you have? Any chance of a quick review? We’re always interested in diagnostics.

Click to expand...

I used a launch x431 pro........but the diagnostics I use on a daily basis is a Snap On Verdict V7. But only the Launch had the option on it to reset MAF parameters .

The Launch X431 belongs to the garage, the Snap On is mine. It's a great tool, use it before and after every remap to check for any codes or problems ....also use it for mobile diagnostics. Injector coding, parameter resets, live reads, code read & clear, service resets etc etc

 

Last edited: Jul 26, 2018

JC600

Well-Known Member

• Jul 26, 2018

• #10

Skinny Mike said:

@JC600
Any chance you can edit the title of this thread and add "solved" to it.
Makes its easier for peeps to search it in the future.
Cheers
Mike

Click to expand...

Yeah, no problem Mike........I did try earlier, but couldn't do it. I'll try again.

 

JC600

Well-Known Member

• Jul 28, 2018

• #11

Done around 120 miles now, and my Freelander has never driven this well.