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View Full Version : heres a strange one for the LET heads



alan b
23-09-09, 07:53 PM
right so i was setting my boost the last day, and when i went upto .9 bar i got a flash code, lambda signal low, so i popped over to a mates to get his wideband(which i no is accurate) now so we set off again and the wide band read around 12:1 on full boost and wasnt lean anywhere in the rev range in any gear, yet the light flashed for the same reason, ive now set it to 1.1-1.2 bar and its reading 13:1 on full boost, light is still flashinglol so i checked it with a different wideband and got the exact same readings, so my question is, is it safe to run it like this? if the ecu thinks its lean? also worryingly im running a std 3 bar regulator. with phase 2 chips rst plugs and an exhaust. cheers guys

Adam
23-09-09, 08:03 PM
13.1 on boost is lean

Sloth
23-09-09, 08:16 PM
should be 11:1 iirc, but dont quote me on it...

alan b
23-09-09, 10:56 PM
13.1 on boost is lean

do you think so? i no its not as rich as you would like but its not an unsafe figure is it?

Lee H
24-09-09, 03:33 PM
do you think so? i no its not as rich as you would like but its not an unsafe figure is it?

yes, should be looking for around mid 11's on boost. Surprised it hasn't melted yet to be honest.