Finally got the Grey R back on the road and through the MOT but it was really running badly.
The ECU was showing fault code 34 which is the DET sensor. As it's almost an engine out job to get to it (yes I've still got the A frame in)I started to look for options and came across this:-
***********
1) The 'knock sensor' is in-operable after 4000rpm due to the amount of noise and vibration from the motor, so right at the most likely time detonation would take place the good old nissan sr20 "knock sensor" don't do squat.
2) The knock sensor on sr20's are a very common fault, if it is comming up with code 34 that does NOT mean your car is pinging it means your knock sensor is faulty - and your ecu will revert to a safe mode.
3) These things are dead set near impossible to get to, and even when you do they are quite espensive to replace
4) unless you are running a PFC the knock sensor is a worthless peice of crap, that is as far from a "safety mechanism" as bald tyres in the snow.
**********8
So I soldered a resistor across the ECU terminals where the DET sensor should have been and the car runs smooth as silk - problem solved???
I only run standard boost etc so not sure after reading the above comments whether I really need to fix the problem or leave it as it is.
The ECU was showing fault code 34 which is the DET sensor. As it's almost an engine out job to get to it (yes I've still got the A frame in)I started to look for options and came across this:-
***********
1) The 'knock sensor' is in-operable after 4000rpm due to the amount of noise and vibration from the motor, so right at the most likely time detonation would take place the good old nissan sr20 "knock sensor" don't do squat.
2) The knock sensor on sr20's are a very common fault, if it is comming up with code 34 that does NOT mean your car is pinging it means your knock sensor is faulty - and your ecu will revert to a safe mode.
3) These things are dead set near impossible to get to, and even when you do they are quite espensive to replace
4) unless you are running a PFC the knock sensor is a worthless peice of crap, that is as far from a "safety mechanism" as bald tyres in the snow.
**********8
So I soldered a resistor across the ECU terminals where the DET sensor should have been and the car runs smooth as silk - problem solved???
I only run standard boost etc so not sure after reading the above comments whether I really need to fix the problem or leave it as it is.