Pinging Spark Knock Pre-Ignition
#61
11-01-2008, 11:04 AM
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Originally Posted by NismoG35S
i think you cali guys need to drive over to NJ lol i once mixed regular with 1/4 tank 93 and omg pinging like hell i felt so bad i did that altough i knew the motor was gettin replaced at the time. went back to 93 and never heard it again this was on the old oil burner motor btw. It was def that nickle in a tin can sounds too.
#62
11-01-2008, 11:14 AM
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Originally Posted by ANMVQ
I have never used anything but 93 sometimes 94 when I can find it. When you check all your sensors check both O2's the voltage on mine never moved either at idle oe under load. They never threw a CEL and the dealer never replaced( refused to). Also the EGR solinoid could be stuck open..The gas thing did not work for me either tried 4 different stations and even octane boost, TB clean and injector cleaner. Zip.. The only thing other than the O2's were the ECU..
Found out the revup VQ's do not have EGR's. When they went to variable exhaust timing, they dropped the EGR system. Another tech on here confirmed too, no EGR on my type of VQ.
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11-01-2008, 10:36 PM
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01-07-2009, 11:03 PM
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#67
01-08-2009, 12:14 AM
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^ Don't know. Haven't played around with different plugs to know different. Mine have NKG platinums, I know that.
Gap...need to look in my 06 service manual. BRB after my knock/ping update post...
-edit-
Gap is 1.1mm or 0.043in
Gap...need to look in my 06 service manual. BRB after my knock/ping update post...
-edit-
Gap is 1.1mm or 0.043in
Last edited by V35 Skyline GT; 01-08-2009 at 02:05 AM. Reason: Added Plug gap
#68
01-08-2009, 02:02 AM
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Update
Some of my A/F % numbers were like 118...128 under load while pinging. Way too high. Cipher logs were done when ambient temps mid/upper 70's F, ~106F intake air temp and driven after VQ had sat becoming heat-soaked. Coolant temp ~210F and dropping to normal 201F while driving. That was awhile ago, sorry for the late update.
02's are fine. No stored DTC's. No MIL's. No warranty fix for me.
Ambient temps colder now (~47F and lower). Seems no ping even when I try to make it ping. Need to do more data logging at these cold temps and compare what's different, if anything. Have a hunch they won't be though.
AFR's are lean like my old dyno pulls proved. Bet that's due to my cookie cutter factory ecu tune that needs to meet Cali ULEV II or LEV II emission standards. Can't remember which standard was in force for year 2006.
Warm to hot intake air temp seems to be just enough to throw this lean tune into low rpm detonation under light load on my revup VQ. So special, thanks Nissan/Infiniti. The oil consumption with these weren't enough eh
Anyone hear of the higher hp VQ35HR and VQ37VHR ping? I haven't. Think Nissan/Infiniti did a much better factory ECU tune on those than on my VQ35DE revup.
All for now.
02's are fine. No stored DTC's. No MIL's. No warranty fix for me.
Ambient temps colder now (~47F and lower). Seems no ping even when I try to make it ping. Need to do more data logging at these cold temps and compare what's different, if anything. Have a hunch they won't be though.
AFR's are lean like my old dyno pulls proved. Bet that's due to my cookie cutter factory ecu tune that needs to meet Cali ULEV II or LEV II emission standards. Can't remember which standard was in force for year 2006.
Warm to hot intake air temp seems to be just enough to throw this lean tune into low rpm detonation under light load on my revup VQ. So special, thanks Nissan/Infiniti. The oil consumption with these weren't enough eh
Anyone hear of the higher hp VQ35HR and VQ37VHR ping? I haven't. Think Nissan/Infiniti did a much better factory ECU tune on those than on my VQ35DE revup.
All for now.
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