Subject	Your dyno chart is classic of what a chart looks like with
Posted by	Greg D. (Specialty-Z) on October 21, 2015 at 2:56 PM
	This message has been viewed 405 times.
In Reply To	Finally got on the dyno posted by BlackholeZ on October 17, 2015 at 05:38 PM
Message	a significant boost leak. You really do not know how rich your running because you are pegging the dyno wideband sensor and it can not even measure how rich you really are running. The chip is not likely the problem unless you simply have the wrong program. The ECU reads the air the turbo sucks and provides fuel for the air it is reading. When you have a boost leak, the ECU reads all the air the turbo pulls, if that air does not get to the engine from a boost leak, the engine is getting all the fuel for the air the turbo pulls, but the engine is not getting all the air due to the boost leak. A boost leak is the most likely cause for a crazy rich condition such as you have. Yes other things could cause it, but they are way less common and much less likely. Turbo outlet hoses are very common, the charcoal canisters leaking are becoming more common. fuel rail seals can cause it, the list goes on, boost leaking is likely what your going to find causing your condition.
Follow Ups	Finally got on the dyno - BlackholeZ 17:38:50 10/17/15 Type of fuel, octane? Boost? (n/m) - itsa300zx 19:10:13 10/17/15 Oh yeah, forgot that - BlackholeZ 19:18:37 10/17/15 Seems kind of low for your mods - ZXRider 02:52:34 10/18/15 I forgot to add ASP under drive pulley (n/m) - ZXRider 03:00:19 10/18/15 I was hoping for more - BlackholeZ 12:00:10 10/18/15 Re: Finally got on the dyno - rednissan300zx90 09:38:55 10/18/15 Re: Finally got on the dyno - Bigwill837 11:52:35 10/18/15 Yes, I know big intercoolers and piping would help :-P - BlackholeZ 12:40:43 10/18/15 Re: Yes, I know big intercoolers and piping would help :-P - Bigwill837 22:03:59 10/18/15 You guys are missing where he says he needs a new chip. - Evan(CA) 12:02:58 10/18/15 It is an ash chip - BlackholeZ 12:25:01 10/18/15 A custom SZ tune would be money well spent. (n/m) - Evan(CA) 12:35:17 10/18/15 For sure - BlackholeZ 13:34:26 10/18/15 No way is the chip that far out. you have an issue - Antihero 11:00:06 10/20/15 Suggestions on what else it might be? - BlackholeZ 16:35:13 10/20/15 my guesses... - Antihero 22:57:05 10/20/15 now that I think about it... - Antihero 21:49:48 10/21/15 well I'll keep that in mind - BlackholeZ 11:38:03 10/22/15 If it's running that rich, I would be concerned about - MixManMash 11:37:45 10/19/15 I don't actually drive it that much, - BlackholeZ 20:19:12 10/19/15 A/F is pig rich at 10.0. Take out a little fuel. (n/m) - NUTTZ(EPTmotorsports) 09:22:45 10/21/15 This is exactly what you do NOT want to do.... - Greg D. (Specialty-Z) 15:01:06 10/21/15 Do you have consult or a scope to watch O2 sensors at cruise - -Grimm- 09:44:42 10/21/15 Conzult shows O2s properly cycling at cruise (n/m) - BlackholeZ 11:32:27 10/22/15 Your dyno chart is classic of what a chart looks like with - Greg D. (Specialty-Z) 14:56:33 10/21/15 Thanks for the feedback Greg - BlackholeZ 11:36:39 10/22/15
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