1995 3.9 v8

can someone tell me if my discovery (year and model in title) has a 'limp mode' that if the ecu detects a problem (from one of the sensors, etc.) it will cut the revs to 1550rpm...

i'm on other sites asking about my problem and i'm getting more than one person tell me that the ecu on my disco is not sophisticated/new enough to have such a thing and my problem lies elsewhere.

can someone, please, give me a difinative answer??? as i'm pulling what little i have left of my hair out!!!

:doh::doh::doh::doh:

also, if it does have a limp mode, when it's in limp mode, will the engine management light come on????

i dont think they do they the ecu mostly just alters length of time injectors are open to adjust fueling in respect to throttle position engine temp ,the amount of air and fine tuned by o2 senors if fitted,whats your symptoms

when running on petrol, she will not rev past 1550rpm, feels like the ignition is being shut off momentarily, out of gear/in park or neutral (it's a 4 speed auto) with the wheels not turning she will happily rev to over 4000rpm and will hold any revs for as long as you care to rev it...

if i disconnect the battery for about 30-40secs she will rev normally for a few mins and then start the 'not rev past 1500rpm' thing again...


running on lpg she behaves faultlessly

sorted now, turned out to be the VSS and TPS...

changed em both and running like a good un