wedge07

Ive fitted an rs2000 16v mk5 engine in my mk 4 escort cab. Its all running okish but as soon as i press the throttle right down when driving it splutters and back fires.
Its no where near as bad if i slowly put throttle on.
Lambdas are knackered and dont really want them on, so left them disconnected. Also removed egr, iscv, powersteering pump n have no cat as wont need one from age of car.
Would having no 02 sensors be causing this problem??
And can a tuner tune it so itll run right?

Mr C

iTrader: (2)

Why don't you want the lambdas on for good clean fuel efficient and economical running?! Sounds stupid to remove something if the engines management is setup to run them

wedge07

Is it worth getting new ones then?

Mr C

iTrader: (2)

If the Ecu is a standard Rs2000 item it needs them for correct fuelling I would have thought, you may be ok with out the cat and post O2senser, Jim or someone else may know for sure.

snoopaloopa

iTrader: (3)

The very early mk5's didn't run cats they had a sensor for each downpipe pair before they join into one pipe, if your running the standard management then yes you will need to run the lambdas or your fuelling will be all over the place making it run like crap.

wedge07

cheers thats what i thought, do you know if any 4 wire lambda will work as i can get some from my mates work (scrapyard) just to try it out?
cheers