phill 147

how can i check if maf sensor is ok
how do i check coil packs are ok
how do i check idle control valve and throttle sensor

car starts ok and idles fine drive 500 yards and car is hesitant when you stop the car struggles to stay running then vehicle revs up to just over 1100 and settles then occurs again when driving of vehicle hesitates and holds back seems to be ok when giving it a boot does pop back through exhaust a lot more running a decat exhaust system

Jolly Green Monster

iTrader: (4)

Doesn't sound like coil packs..

MAF is fairly robust on early cars but does sound like the most likely to be at fault from your description.. you could try cleaning it..

also might be worth resetting the ecu and you are using 97ron or Optimax??

Ecu reset info here

phill 147

ttt

scoobtech

hi.....1st thing i would suggest is 2 check for air leaks ...the easiest test to do , you need some carburetter spray or similar ........spray around your throttle body , intercooler inputs/outputs & around your induction & vacuum pipes ......do this whilst the engine is ticking over ........if your idle speed rises whilst spraying around a certain area then thats where its leaking ....then if need be you can go to the nxt step.

do you no any MOT testers that will let you stick you car on there gas anylizer ?? ......if you do then that would be helpfull ......a CO , O2 , and lambda reading would help alot .

scott