Detonation at 4500 rpm
#1
Detonation at 4500 rpm
As title States I've had open loop detonation from 4000-4500 rpm off and on for six months. Does not detonate under closed loop and no codes. New plugs in the motor, copper ngk
Safc is set to dump 10 points of fuel at the range. It happens sometimes and other times it doesn't
Enigne temp and ambient temp have no bearing on it
Slight misfire at idle on rare occasions
Cam sensor check out fine
Any ideas?
Safc is set to dump 10 points of fuel at the range. It happens sometimes and other times it doesn't
Enigne temp and ambient temp have no bearing on it
Slight misfire at idle on rare occasions
Cam sensor check out fine
Any ideas?
#6
Seems like a lot of fuel to be dumping in there.
I agree, at least set the correction to 0.
I also agree, anything screwy going on at that RPM, lean/rich?
I agree, at least set the correction to 0.
I also agree, anything screwy going on at that RPM, lean/rich?
#7
With correction set at zero I idle at 15.6 air and wide open at 13.4-13.8
Safc removed same issue
I'm thinking it may be my maf on its way out since the issue occurs only in open loop. Tonight it fell as if I hit the Rev limiter when accelerating past 4000 rpm
Mods btw
00vi stock injectors
Pftb
3.5'' length tuned intake similar to schmellys
headers back
Innovate lc1 wbo2
safc1
Bbmaf which was removed and tubed taken off once issue started
Safc removed same issue
I'm thinking it may be my maf on its way out since the issue occurs only in open loop. Tonight it fell as if I hit the Rev limiter when accelerating past 4000 rpm
Mods btw
00vi stock injectors
Pftb
3.5'' length tuned intake similar to schmellys
headers back
Innovate lc1 wbo2
safc1
Bbmaf which was removed and tubed taken off once issue started
Thread
Thread Starter
Forum
Replies
Last Post
Unclejunebug
5th Generation Maxima (2000-2003)
10
04-02-2016 05:42 AM
Need help
5th Generation Maxima (2000-2003)
23
10-02-2015 08:56 AM