I was wondering if anyone can recommend someone around Basingstoke to take a look at my MPI?
It failed the MOT on the Lambda been 1.19 on the 2nd fast run. I found the Y piece to be cracked. (HC and CO were very low)
I've taken the whole exhaust off checked it and re-assembled. I wasn't 100% sure about the Lambda so fitted a new one as well, one of the connector pins was actually broken so Ive had to solder a link in.
Its now idling very rich and getting slight popping from the exhaust at idle.
Seems fine when revved but its hesitant to sit at 850rpm, after revving its hovering at 1500 and is preferring 1100-1200 for an idle!
I removed the inlet manifold (Burlen alloy one), cleaned all the sensors and put the injectors in an ultrasonic bath, new rubber o rings on assembly.
Cleaned all other sensor's on the inlet.
Before it was boiling over, the header tank was suspect along with some of the radiator pipes, so I replaced this along with the water pump and heater matrix.
Its quite tapey so I was going to check the tappet clearance next.
Its got an OAP racing stage 3 head, 270 Cam, and 1.5 roller rockers. In the spec the fuel regulator is also modified.
I have PC scan and ive plugged it in but no faults are showing, apart from the oil temp sensor as the connector is damaged. Idle correction/error is 300-400rpm.
Thanks for any help!