limp home feature

[Noir]

i was looking at a svx info site and saw there was a 'limp home' feature. anyone know what that is? i did a search on 'limp home' and found nothing. thanks.

i guess a limp is better than crawl.

[nubs]

A generic limp mode explanation can be found HERE

The SVX probably has this or something similar.

[GreenMarine]

Cool, That's handy to have!!!

[lee]

when my gear position sensor (on the side of the tranny) broke, it went into a limp home mode. Selecting manual, or 3rd, or 2nd, or whatever had no effect. The auto shifting worked fine, just no other features. I really noticed it because the dash indicator never moved.

[Noir]

that's good. if i ever have a bad sensor or some abnormality in a particular function related to the drivetrain, i can 'limp' home.

[BackWoodsBob]

Bump

I'm stuck in limp home mode, but via ECU and not the TCU. Any ideas on resetting it? I've unplugged the neg terminal and no joy. I've pulled the codes and only getting a code 24 for the aux air con valve. Which I've had for over a year. AND the car idles perfectly. Runs fine till 1500rpm.

ANY ideas would be appreciated!

[bishop]

bumped a thread from 10 years ago bud.

[BackWoodsBob]

I'm pretty desperate, need my car for work

[oab_au]

Originally Posted by BackWoodsBob

Bump

I'm stuck in limp home mode, but via ECU and not the TCU. Any ideas on resetting it? I've unplugged the neg terminal and no joy. I've pulled the codes and only getting a code 24 for the aux air con valve. Which I've had for over a year. AND the car idles perfectly. Runs fine till 1500rpm.

ANY ideas would be appreciated!

Well Bob, there is no "limp home" mode. What happens is if a unit is having problems that the ECU cannot use, it then runs a set of tables for that unit so that the car will run.
If it runs OK till 1500, I would say that the Mass Air Flow sensor is not operating, and the ECU is running an set "idle" of tables that unit.
Can't think of any other unit that would cause it.

Harvey.

[BackWoodsBob]

I was hoping I'd attract your attention Harvey! You've been a great help in the past.

I've already ruled that out with the 'unplug' test. Ran like crap and still wouldn't go past 1500. Tried gapping the plugs again, no change, tried the fuel pressure regulator, no change.

Checked all connections, and changed oil pressure sensor for a known good unit. No change. Checked TCU connections, all snug as a bug. Adjusted TPS, no joy there either.