My Calais wont rev up?????

[SMOKINUTE]

i have an 1988 vl calais RB30 i was on my way to work and it started to break down in high rpm ( 4000-5500rpm) then on the way home from work it would not rev past 2500 rpm with out breaking down and backfiring??? then finally when i got home it barley ran at all backfiring at a little over 1500rpm i thought bad fuel but i changed the fuel filter and its still the same any advice from any one coz im lost at the moment cheers

[mrvdv]

habe you checked the spark plugs/fuel pump

[05 Senator]

is your intake pipe between your air flow meter and manifold leaking or loose. my mate had the same problem and that was why. also the AFM could be stuffed

[Tree cutter]

Sounds like an air flow meter problem. Try checking fault codes

[*uwishn*]

yep,i would say you reved the shate out of it and the air sensor/intake pipe has come off,i use to do it all the time in my old girl

[SMOKINUTE]

ok i have changed the AFM checked and double checked the intake pipes and still no improvement does anyone know how i check the fault codes i know i have to set the screw on the side of the computer to A but i dont know how many flashes (Red and Green) mean what i have the manual but find it really confusing can anyone tell me in a way i can understand thanks heaps

[SMOKINUTE]

Hey people im pleased to report the calais is flyin once again i called a mate that told me to check the dizzy and change the plugs and leads and now its going better than ever so thanks for all the advice c-ya all later in the rearview mirror LOL