poor running and nanocom codes

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P

palace

Active Member
Posts
739
yesterday I did a 260 mile round trip taking the new turner engine up to 400 miles since fitting
the car seems to lack performance so much so that it seemed to be running on 7 cylinders
I got home and plugged in the nanocom and got this:

FRA bank 2 drive cycle C
occurred 4 times
signal too low
fault not present
determined as intermittent
Fault causes the MIL lamp activation

can someone put this in plain English please ? and what do I have to buy or fix ? :)
 
right plugged in no idea what the data or numbers mean but I do have a misfire on number one cylinder
aside from a crap plug or lead what can cause this ?
 
There you go. Miss fire will be putting unburnt petrol down the exhaust which the O2 sensor will read as too rich and try and trim back the fueling until it reaches the limit and bingo -fault registered.
 
Last edited:
rewmer said:
There you go. Miss fire will be putting I burnt petrol down the exhaust which the O2 sensor will read as too rich and try and trim back the fueling until it reaches the limit and bingo -fault registered.
Click to expand...


Or no fuel going in from a duff or unfired injector. The fuel trims will normally be weakened for a lack of spark issue and richened for a lack of injector firing issue.
 
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