v man

right here it goes........

when driving at any speed or rpm my car constantly hold back and missfires
ive changed plus and map sensor
is there anything that can cause this
crank sensor is all good claen and undamaged

iam running greys
bd14 bd16
low comp
air to air
t35
ported head
500 cooler
grp a coil
909 motor sport leads
denso plugs


every now and then the car picks up and pulls like a train and then holds back again and its almost like it wont rev or boost as it should
the engine was also benched buy ahmed
any help will be great

thanks .............

LHD220Turbo

iTrader: (4)

might be better off posting this in genral dicussion mate

tabetha

Try a new fuel filter first, just to rule it out, then visit your local RR, as it seesm the mixture is going out.
tabetha

v man

i changed my map sensor and was just wondering could any of the other sensors cause poor running like in my situation

its really frustrating coz as i drive it clears up and comes back again

frankyboy

I had a similar prob on mine after it had a service at Ford they put new plugs in and they were gapped wrong, so on boost it would blow the spark out. just a suggestion.

MAD Ade

iTrader: (1)

Does your rev clock jump about when it misfires? If so it may be your phase sensor

charlieboy

i put my money on actuator being shafted!

Nash

iTrader: (3)

How old is the engine loom?

tabetha

The fact that it pulls like a train says it is NOT the spark getting blown out, and this would NOT cause a misfire, that you could FEEL anyway.
Have a good wiggle, on the CPS connector, to see if it is any different.
tabetha
ps change the fuel filter