J888PRB

Have anyone got a contact at MBE - thanks

Thanks Chris looking more like this could be the issue. Will speak to MBE on a separate note - great build blog. Quick question though - I followed your blog for checking the diff torque. My resistance was circa 45 lb ft - newly serviced Titan diff - but I was rotating clockwise on the passenger side not counter clockwise as per your write up. little to no resistance in the counter clockwise direction. Any thoughts?

Hi everyone - update - thanks for all your thoughts and I am adding detail to help with all your thoughtful suggestions. new TPS fitted with no change. symptoms originally were cylinder 1 not firing at all - the fixed wiring loom sorted that out - all 4 cylinders now running the new symptoms are rough idle (not much worse than standard) when gradually accelerating under load the car is cutting in and out hence thinking TPS Doing a night drive tonight I also note that the gear shift light is dimly glowing and not going off after the stuttering which is odd so wondering it could be related to the rev limiter?? Presume all of this is pointing back to the ECU as you all hinted at needing some work, I was hoping not as supposed to be driving to Spa on Tuesday and can't get that done in time I don't imagine. With the ecu - can that just be flashed and reinstalled or is it more involved than that? the new coil loom arrives tomorrow I hope so i will update if that changes or improves the symptoms.. my next thought was a full wiring loom, but I'm clutching at straws. Would prefer to look at the ecu first. JV - your notes are correct - mine doesn't have a connector for adding that loom you made - the wires track back into the main loom. GB - I will look up MBE tonight and call them tomorrow thanks again for reading/advising chaps

Hi John Old coil loom repaired - still misfires but all 4 cylinders are working so all a bit odd., no longer isolated to cylinder 1. Rather frustrating. will try new loom when it arrives Thursday before freaking out. will look at tps next but none in stock as you say and beyond me to make one.....supposed to be driving to Spa in 6 days Better warm up the M3

Spot on JV the wire had sheared off in the connector. Bit of faff to isolate but great result that it was only this. ordered the new loom (£44) and will fix the old one as a spare as clearly yet another week link im new to C7 ownership and can see already it will be a love-hate relationship.

Thanks everyone Running diagnostics check on it tonight. I see Caterham sell the wiring looms direct so me point shopping around. Hopefully easy install?

Hi All My 420r picked up a misfire this week. On inspection it is cylinder 1 (front). I've popped in new plugs - no change popped on new coils - no change now left scratching my head. Has anyone any experience of similar. Any advice welcomed. Car is a 2016 420r - 13000 miles. Thanks