S

Simon098

Active Member
Hi Guys,

Been scratching my head on this one for a while now. I've bypassed the clutch switch as this was giving the over-rev issue.

When I go to pull away, the engine seems to hesitate to build revs when pulling away, but once the vehicle is moving, the throttle response is what I would expect. Anyone else had this issue?

Also, I don't know anyone else with a TD5 so can't test against theirs, but 3rd gear has lots of power and climbs to 4000rpm with great ease. But when in 4th gear (still accelerating), it's like it's run out of breath..?
 
The first thing I would be doing is replacing the clutch switch rather than just bypassing it. The ECU isn't going to know what you're doing with the clutch and so it's unlikely that it's going to respond as the software intends it to.
 
brian47 said:
The first thing I would be doing is replacing the clutch switch rather than just bypassing it. The ECU isn't going to know what you're doing with the clutch and so it's unlikely that it's going to respond as the software intends it to.
Click to expand...

This was one of mt suspicions, hence why I mentioned it. But I was curious if anyone else had exoerience this too, seeing as bypassing this switch is so common.

And I know someone with a TD5 in Disco 1 that doesn't seem to have any issues and they don't have the switch either, but don't seem to suffer this issue (10P - same as mine)
 
check the hi-low switch inpiut with nanocom cos if it's stuck in low even if the box is in hi the ECU works on a different fuel map which is not suitable for hi range
 
sierrafery said:
check the hi-low switch inpiut with nanocom cos if it's stuck in low even if the box is in hi the ECU works on a different fuel map which is not suitable for hi range
Click to expand...

I thought the failure mode was always to be in HI?

Cheers
 
Also, if you want to see if the switch is working try selecting HDC, this will only work in LO, if you try in HI then the warning will sound and it will not allow HDC to be engaged.

Cheers
 
neilly said:
I thought the failure mode was always to be in HI?....
Also, if you want to see if the switch is working try selecting HDC...../.
Click to expand...
yes.... as long as it's not a short to earth on the circuit...good point with the HDC, IMO this is something to be ruled out just for peace of mind
 
sierrafery said:
yes.... as long as it's not a short to earth on the circuit...good point with the HDC, IMO this is something to be ruled out just for peace of mind
Click to expand...

MAF has been replaced and checked with Nanocom (60 at idle, 600 at full throttle)

Low, High switch works correctly and tested the HDC button, constant beeping when in high box, not in low. Also checked with Nanocom
 
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