Disco 2 Miscoded Injector(s) Symptoms

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Unfortunately the .txt file is incomplete as the most important values are missing(air flow, AAP, boost), i dont know why .csv is not allowed, i dont have win.zip license on my laptop so i can't help with this one, eventually if you convert it to .xlsx if that can be loaded
 
sierrafery said:
Unfortunately the .txt file is incomplete as the most important values are missing(air flow, AAP, boost), i dont know why .csv is not allowed, i dont have win.zip license on my laptop so i can't help with this one, eventually if you convert it to .xlsx if that can be loaded
Click to expand...
error.jpg

This what I get when I try upload a CSV or XLSX file. @neilly you could obviously open the ZIP, are you able to upload a CSV file?
 
Nothing very obviious in that file unless the oddity that in some cases the throttle tracks(Accel way) are strange cos way 1 + way 2 exceeds supply which should be impossible but it can be a ADC glicth within the ECU
1. is it remapped?
2. whats' the EXACT symptom which makes you unhappy?
3. unplug the throttle pot and give some contact spray there
 
sierrafery said:
Nothing very obviious in that file unless the oddity that in some cases the throttle tracks(Accel way) are strange cos way 1 + way 2 exceeds supply which should be impossible but it can be a ADC glicth within the ECU
1. is it remapped?
2. whats' the EXACT symptom which makes you unhappy?
3. unplug the throttle pot and give some contact spray there
Click to expand...
Yes, it has been remapped by Dynachip (but it was like this before)
Once the engine is above about 2500rev, it just feels lumpy, under-fuelled, not as smooth as I would have thought it should be.
I'll get some contact spray in the throttle and see if it gets any better.
I appreciate you looking at the data file. :)
 
sierrafery said:
try a run with MAF unplugged cos the readings are a bit low at full boost, do you still have EGR?
Click to expand...
The MAF is a new genuine one, about 12 months old, but I'll run it without it connected for a couple of runs. I did notice that the readings were less than you have previously suggest of 600+, but I just put that down to me not heaving a heavy right foot. As for the EGR, that was removed shortly after signing up to this forum and reading the less than positive comments about it :D
 
Your heavy right foot is not transduced in that log though;) ... If you know it's old simply replace the depression control valve cos that one can mix up things as if it doesnt close well the MAF readings are lower as the air flow is reduced by excessive crankcase gasses, this one is supposed to close at high revs to limit depression in the crankcase and can't be ruled out completely only by replaceing it...i consider it a medium term service item being a plastic bit exposed to hot oily gasses
 
sierrafery said:
If you know it's old simply replace the depression control valve
Click to expand...
What is this depression control valve?
On another note, I've just got back from town, running without the MAF connected, and the engine seems better. I can hold it at higher revs for longer now, without this perceived roughness. I'll leave it disconnected for a few more runs just in case it's psychological.
 
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