Garrett76Zt Posted September 9, 2009 Share Posted September 9, 2009 yea i remember watching that a few years ago. Quote Link to comment Share on other sites More sharing options...
Overkill Z Posted September 10, 2009 Author Share Posted September 10, 2009 and its still going strong! Quote Link to comment Share on other sites More sharing options...
Overkill Z Posted September 22, 2009 Author Share Posted September 22, 2009 As of Yesterday my car is TUNED..untill 2500rpms. for some reason it acts like it is hitting a rev limiter at 2500 rpms.... now I have talk to MANY professionals and everyone is scratching their heads. Things i have Checked to see what could be cause it. 2step rev limit in AEM---OFF Main rev limit in aem---8000rpms sync status ---0 even if ignoring sync it still does it. timing---set fuel---set can anyone add to the list of things i could check????? remember this is a series 2 EMS Quote Link to comment Share on other sites More sharing options...
stony Posted September 23, 2009 Share Posted September 23, 2009 You say you looked at timing and fuel but have you looked at those values in the boost pressure area. you could be starting to boost and if the boost cut is set at o or +1 wamo.... just something i learned a long time ago ;> Quote Link to comment Share on other sites More sharing options...
Overkill Z Posted September 23, 2009 Author Share Posted September 23, 2009 but this is happening at idol? no load? i guess technically i could be hitting boost??? Quote Link to comment Share on other sites More sharing options...
ShaggyZ Posted September 23, 2009 Share Posted September 23, 2009 You said it was fine until 2500 RPM, which isn't idle. Quote Link to comment Share on other sites More sharing options...
Overkill Z Posted September 23, 2009 Author Share Posted September 23, 2009 it runs GREAT!!!!! revs great..doesnt over heat or anything!!! but when i hit 2500rpms it back fires and pops like crazy. i meant In neutral i haven't driven the car yet. Quote Link to comment Share on other sites More sharing options...
Gritz Posted September 23, 2009 Share Posted September 23, 2009 (edited) it runs GREAT!!!!! revs great..doesnt over heat or anything!!! but when i hit 2500rpms it back fires and pops like crazy. i meant In neutral i haven't driven the car yet. Check your coil packs, crank and cam angle sensors. Also a bad tps can cause issues like this.... One more thing what are your spark plugs gapped to? most 1j and 2j guys gap the plugs at .26-.28 only use NGK also. Make sure the car has all the proper ground.. for example from the engine block to the chassy. Ps if your car has been running like this for awhile, i would go with a fresh set of plugs, cause NGKs foul out like crazy.. Edited September 23, 2009 by Gritz adding more Quote Link to comment Share on other sites More sharing options...
stony Posted September 23, 2009 Share Posted September 23, 2009 Can you take a video of it running and doing what you are describing. Quote Link to comment Share on other sites More sharing options...
Overkill Z Posted September 23, 2009 Author Share Posted September 23, 2009 i will get a vid today! Quote Link to comment Share on other sites More sharing options...
Overkill Z Posted September 24, 2009 Author Share Posted September 24, 2009 HERE IS THE VIDEO OF MY REVVING PROBLEM!!!! LET ME KNOW WHAT YOU GUYS THINK!! http://videos.streetfire.net/video/OVERKILL-Z-rev-problems_708824.htm Quote Link to comment Share on other sites More sharing options...
stony Posted September 24, 2009 Share Posted September 24, 2009 definitely sounds like a rev limiter of some sort. if you have checked everything i would suggest contacting AEM and ask some questions Quote Link to comment Share on other sites More sharing options...
ShaggyZ Posted September 24, 2009 Share Posted September 24, 2009 Did I really just watch a 15 second ad before watching your video!? Quote Link to comment Share on other sites More sharing options...
stony Posted September 24, 2009 Share Posted September 24, 2009 mine was for a Klondike bar :> Quote Link to comment Share on other sites More sharing options...
Overkill Z Posted September 24, 2009 Author Share Posted September 24, 2009 lol ya streetfire does that now!! its lame...you can fast forward through them tho.... I have talked to AEm multiple times and they are kinda scratching their heads and want me to try someone elses ems at this point in time....but its kidna hard to find someone willing to unplug their box. Quote Link to comment Share on other sites More sharing options...
stony Posted September 25, 2009 Share Posted September 25, 2009 Can you send it to AEM and have them set everything to zero??? tell them what it is doing and have them look thru everything. other then that not sure what to tell you. But it for sure sounds like a rev limiter. your boost gauge was acting kinda funny to. looks like it started to build boost then lost it. if the pedal wasn't lifted that might be an issue to. you shouldn't be bouncing around like that. Quote Link to comment Share on other sites More sharing options...
Overkill Z Posted September 25, 2009 Author Share Posted September 25, 2009 i was lifting the pedal case the car was cold Quote Link to comment Share on other sites More sharing options...
ARZ_ Posted September 25, 2009 Share Posted September 25, 2009 It sounds like you have the firing order wrong. 1,5,3,6,4,2 will idle fine and do EXACTLY what yours does in the video. You state that it runs fine until 2500 but if you have it floored until it gets to 2500 I think that sounds like CRAP. Also watching your boost gauge, supports my theory. WOT at that kind of acceleration rate wont build boost unless you have unburnt fuel getting into the exhaust and igniting there. Thats why the longer you stay on the throttle the more it appears to build boost. Hope this helps, please keep us posted. Obviously its supposed to be 1,5,3,6,2,4 Also are you going WOT when it accelerates? Or are you easing into it? Please let us know. Quote Link to comment Share on other sites More sharing options...
ShaggyZ Posted September 25, 2009 Share Posted September 25, 2009 It sounds like you have the firing order wrong. 1,5,3,6,4,2 will idle fine and do EXACTLY what yours does in the video. You state that it runs fine until 2500 but if you have it floored until it gets to 2500 I think that sounds like CRAP. Also watching your boost gauge, supports my theory. WOT at that kind of acceleration rate wont build boost unless you have unburnt fuel getting into the exhaust and igniting there. Thats why the longer you stay on the throttle the more it appears to build boost. Hope this helps, please keep us posted. Obviously its supposed to be 1,5,3,6,2,4 Also are you going WOT when it accelerates? Or are you easing into it? Please let us know. I think that's a great guess. That idea was on the tip of my brain but couldn't get it out. Quote Link to comment Share on other sites More sharing options...
Overkill Z Posted September 25, 2009 Author Share Posted September 25, 2009 i dont think so...when its warm it idols extremely smooth with no hicups or anything. Quote Link to comment Share on other sites More sharing options...
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