too lean
too lean
how bad is it for your engine if your engine is running too lean (lean enough that the "service engine soon" light is on)?
does it require immediate attention? or will it affect the longevity of the engine
thanks in advance for any response
does it require immediate attention? or will it affect the longevity of the engine
thanks in advance for any response
Well it depends how lean you are running. IMHO i would get it checked out as soon as you can. I blew the motor on my supra because it was running to lean. The tuner tuned it way to lean to squeeze out more HP. Better safe than sorry. Learned that one the hard way.
My question is how do you know your engine is running "lean"? If it's running THAT lean that is causes a CEL (most likely for a cylinder misfire/injector misfire), then yes, that's dangerous.
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i checked at autozone (computer scanner) and the code it threw, turns out to be because it running too lean...
i only have a couple of bolts ons, no FI
what are my options to fix this problem? i'm sure a reflash by technosquare would do the trick...what are some other options?
once again thanks for the imputs
i only have a couple of bolts ons, no FI
what are my options to fix this problem? i'm sure a reflash by technosquare would do the trick...what are some other options?
once again thanks for the imputs
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If its just basic stuff I don't see HOW lean it could get? People are running 12.5:1 ratio with aftermarket computers on NA VQ's.
Did you do all the breather mods at once, or over time?
What was the last mod done? Did the light come on after the last mod, or have you been done modding for awhile and it just came on? Do you remember the specific code- P#### "Left/right bank lean"?
Try unhooking the battery for 24 hours to reset the ECU and then go drive it as normal and see if the light comes on. Depending on how much you've opened up the system the 02 sensor may have gone out of range twice or three times and sent the code.
Did you do all the breather mods at once, or over time?
What was the last mod done? Did the light come on after the last mod, or have you been done modding for awhile and it just came on? Do you remember the specific code- P#### "Left/right bank lean"?
Try unhooking the battery for 24 hours to reset the ECU and then go drive it as normal and see if the light comes on. Depending on how much you've opened up the system the 02 sensor may have gone out of range twice or three times and sent the code.
Originally Posted by Jerze Rat
Well it depends how lean you are running. IMHO i would get it checked out as soon as you can. I blew the motor on my supra because it was running to lean. The tuner tuned it way to lean to squeeze out more HP. Better safe than sorry. Learned that one the hard way.
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From: Southern Cali --> 818
Originally Posted by techi13
i checked at autozone (computer scanner) and the code it threw, turns out to be because it running too lean...
i only have a couple of bolts ons, no FI
what are my options to fix this problem? i'm sure a reflash by technosquare would do the trick...what are some other options?
once again thanks for the imputs
i only have a couple of bolts ons, no FI
what are my options to fix this problem? i'm sure a reflash by technosquare would do the trick...what are some other options?
once again thanks for the imputs
.
my last mod was put in about 4k before the ses light went on...
another problem...i think my car is consuming too much oil...so i'm considering going back to stock before taking my car into the dealership
what a pain in the a$$
whats a good price for the UTEC? and how much should i be looking at to get it installed?
another problem...i think my car is consuming too much oil...so i'm considering going back to stock before taking my car into the dealership
what a pain in the a$$
whats a good price for the UTEC? and how much should i be looking at to get it installed?
Last edited by techi13; Feb 10, 2007 at 12:45 AM.