problems helppppppp

[steve855]

the 850 fires and starts up and ticks over although lumpy but wont rev up .if you pump the throttle it will rev to about 2000 revs popping and banging .
any idea's thanks

[T5frankie]

Thats what mine did i ended up scrapping it lol, and it was only 9 yrs old

[Volvostorm]

Is the engine management light on? Best place to start is get the codes read

[leet5r]

have you messed with the fireing order , could be the MAF

[WOODY T5]

could be a boost leak?????????

[t5 stealth]

poss maf sensor.
best get the codes read,that should point you in the right direction.
mine failed when i rolled of the ferry in france lol,
absolute pig to drive like that

[nobananas]

A slightly naughty trick I do to work out fuel from ignition, try spraying a little easy-start into the inlet (short bursts, don't over-do it) whilst opening the throttle. If it revs up cleanly you know your problem is lack of fuel, if it still pops and bangs then it's an ignition problem (won't tell you exactly what it is but it may put you on the right track).

[Volvostorm]

Good tip then :)

[t5_monkey]

Not very helpful....

.... But did you flick your anti lag switch by accident ? :)

[colnotts]

sounds like the maf. unplug it and see how it runs .

[PHIL V70R]

could be a boost leak?????????

this is what mine has done and that was a leak...:cry:

[The Flying Moose]

Any luck with this steve? Have you checked the sparked plugs too? Always a good start with a problem like the one you describe.

Im down in great yarmouth later this week and could bring a spare MAF/Distributor and HT leads for you to try.

Let me know.