Running rough

[coach potato]

Help!!!! This car is really getting on my t**s! It's always had a bit of a lumpy idle ever since I got it in 2012 and was always very lumpy coming off of fast idle but now it's hunting like mad on idle. Ever since I've had the car it's had the engine management light on and diagnostics showed position 2 lambda. Recently I've had the timing chain replaced and today I've replaced both lambda sensors, throttle body and coolant temp sensor, still running rough even after ecu reset. Checked compression, all good.

What next can I try before I drive the car into something solid?

 

[MikeS]

EGR Valve ?

 

[coach potato]

Been blanked off and a cheater fitted. Sorry, should've mentioned that before.

 

[MikeS]

need some diagnostic readings from sensors

I know these engines run rough when in limp mode, so clear the fault down and see if that changes

 

[vocky]

injectors can cause rough running, try swapping them around, so swap 1 - 2 and 3 - 4

 

[evocarlos]

injectors can cause rough running, try swapping them around, so swap 1 - 2 and 3 - 4

forte specialist injector cleaner lol

 

[Wozza]

try a temp sensor