Jim Galbally

an annoying problem with the car has re-appeared!

it did it a few weeks after a bought it, then seemed to dissapear, now its come back again

happens after i been cruising on the motorway for about 45mins... itll stutter like a mofo, as if its getting starved of spark or fuel, its like a car hitting overboost kinda thing, as if i've lifted off completely

it'll do a quick jerk or two, then return how it was..

only happens under light throttle... its fine when nailing it...

out of co-incidence i swapped the Airflow meter thismorning for another one (that was in much better nick that my old one!) this made no difference.

any ideas what else could cause something like this?

i was thinking possibly wiring crap to ECU, broken contact or summink, but then i wouldnt think that'd only show up under light load after a long drive, surely it's be permanemt problem...

was thinking aybe TPS, but last time this happened i bunged a multimeter over it to test it and it was perfectly smooth all the way from 0% to 100%... can you get intermitent problems with TPSes? is it possible to inspect them or clean them? (not gonna keep replacing things till i find it... too expensive, would rather diagnose 1st) could shitty gummed up spark plugs caus something like this? its still got the nitrous-spec plugs in there, which arent the correct spec, and theyre probably a bit fouled too (not checked tho) i assume i shouldput my new standard ones in anyhow...

anyway, any ideas please... fire em at me its erally pissin me off, happened 2 night running now! if i cant sort it myself its not a major issue, as im goin up to MSD at the end of the month anyway... just thought there might be some simple/obvious things to check that i've missed...

Physio

Have you been to see a speach therapist?

Rolls

iTrader: (2)

cruising did you not get my text! lol!

SeanT

Lambdas, either the sensors or wiring mate.

Rolls

iTrader: (2)

Just to add, there appears to be no smoke comming from the car when it does it too!

Jim Galbally

sean would that cause such a violent studder tho? i did think that maybe that was related, but then thought that whatever reading the ECU is getting from em it wouldnt be doing much with so wouldnt cause sucha violent studder? (i'm making assumptions mind you)

altho that does sound like a point... maybe theyre overheating/whatever after a long cruise and showing up faults

and rolls, that WAS a cruising steady!... we kept it under 120 most of the way...

was fookin funny shooting past that beemer tho... was was off the clock approaching the revlimit v. quickly

oh, and at the roundabout, did both wheels spin, or just one? lol

Rolls

iTrader: (2)

PMSL @ mr bmw! - gave me a right dirst look on the bridge! - don't spose he liked being passed at that kinda speed lol! - was off the clock, but reading what i text ya on the angel lol!

as for the roundabout- you left 2 nice black lines buddy! lol!