Re: OT. Hunting engines
"EMB" replied to
> Bob Hobden who wrote:
>> Two friends of mine left their vehicles for some time without using them,
>> one a Honda Civic and the other an "L" reg VW Passat.
>> Now they are MOT'd and back on the road both exhibit the same symptoms,
>> the engine hunts** when stationary instead of a steady tickover.
> How long is 'some time'. It could be as simple as stale petrol.
Couple of months at most.
> They both make me think 'lambda sensor'. More so the Passat which sounds
> like it may have a heated lambda sensor, but the heating circuit isn't
> If it's anything like some of the Fords we get here and the vehicle
> battery went flat whilst unused the ECU may have lost or corrupted it's
> calibration data (that it learns whilst being driven). Theoretically the
> ECU will relearn as the vehicle is driven - it could take up to 1000 miles
> for it to learn enough to settle down properly.
Thanks, is there a way to check it is the Lambda sensor, and where abouts is
one found on an engine, my vehicles don't have such things? :-)
Do they cost much to replace?
1974 S111 SWB 2.25 petrol Hardtop (For Sale)
1987 90 2.5 petrol Hardtop (stolen, found and still not returned!)