p0340 error after cam chain replacement

 

recently replaced the cam chain on my old mans micra, as we had a p0340 code, now it has been replaced ae have a pending code of p0340 and a iratic idle on startup varies between 400 rpm and 1,500 rpm it runs and pulls ok, but occasionaly stalls then codes, would it be worth while replacing the cps sensor on bank 1?

 

the car is a 1.2 2003 with 70k k12 engine i think, the cps looks like its located on the front of the gearbox, there also looks to be a similar on to the top of the engine under the air filter, wiuld theis be bank 2 the cam sensor?

 

had a quick look at the wires they look fine, id there a way of testing the sensors with a multi meter to check and see if they are broken?

 

any one know the exact part number as the sensors liik quite dirty, i have removed and cleaned the large plastic square front, but thats all i realy know about these engines

 

any help would be great, ive don a live reading using my obd tool all looks fine, right mas flow settings, ince initial startup the car does settle down to about 850rpm after about 15-20 seconds of hunting

 

Mike

 

 

Mick