After throwing several hundred ideas about the issue with Duncan and Paul B , they talked me out of setting fire to the car. Knowing my luck it wouldn’t have stayed lit anyway.
I had a 46 year old moment and decided it’s now the MAP Sensor. My idle has been bouncing a little recently. I’m car won’t start properly. Got to be that.
I unplugged it and it wanted to start. Sat in the car and gave it some throttle and voila. Started up. Ran like a bag of spanner’s , but ran all the same
Turned off the car and repeated it. Runs.
Plug the MAP sensor back in and it runs even worse.
Likely that if it is unplugged then the ECU will load in a default value which will kind of work, but, as it is a static value, will only work within limited parameters.
Car wont start.
Cranks over but wont fire
Occasionally sounds like its going to fire then dies and cranks
Car starts but runs like a bag of spanners with the MAP sensor unplugged
MAP sensor has been changed. Values on both look plausible when running and engine off but ignition on
Car starts but runs like a bag of spanners with the MAP sensor unplugged and if you plug the MAP back in it runs marginally better
AFR > 21 according to the wideband and very occasional dips into high teens when running
Crank sensor is detecting the crank pulses ok
Cam input 1/2/3/4 input status are being recorded
I have enabled logging of every fault such as the P0335 and every other sensor I can find.
Nothing logged unless I start without the MAP and then it pics up MAP sensor fault ( duuur! ) and a couple of others
I have found the option for pulsing the fuel pump and it is a PWM pump. I can change the cycles and power. Its doing its pump thing.
