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jza70-mel Regular I supported Toymods Location: Perth WA Registered: May 2002	1JZ: AF ratios too rich Sun, 29 September 2002 11:32 Hi to all the JZ guys, and asking anyone who knows about Toyota ECU's (OR ANYONE THAT CAN HELP). I've just got back from entering my car in a dyno tune competition and was mildly disapointed to see that it developed 166RWKw at 0.9 bar boost. I say disapointed because I have previously dynoed at 193RWKw at the same boost on a much warmer day in February. In addition the previous run was with the old stock intercooler, and I'd like to think the new (550X330X75mm)intercooler runs with less restriction. The dynos were both Dyno-Dynamics. (193 on Tilbrook's, 166 on Turbo-tune), and boost was stable on both (0.9bar). The lesser run had AF ratios about 11:1 (166kw)vs 12-12.5:1 (193Kw) I have not changed anything besides the intercooler, changing my worn out spark plugs (to NGK Iridiums) and tipping in some octane boost / injector cleaner a month ago. My mods: Boost (0.9bar), 3 inch down pipe back exhaust, Apexi S-AFC (tuning unchanged), intercooler. What could have changed the air:fuel ratios? Does the ECU "learn" to go back to the factory settings? What does annoy me more is that the before adjusting the AFC the "stock" readings were 0.8 bar + AF ratio 10:1 = 172RWKw!!!!!!!!!!!!! Can I try to reset the ECU or should I lean out the AF more with the AFC? [Report message to a moderator]

	Subject	Poster	Date
	1JZ: AF ratios too rich	jza70-mel	Sun, 29 September 2002 11:32
	Re: 1JZ: AF ratios too rich	TE72_Turbo	Sun, 29 September 2002 11:43
	Re: 1JZ: AF ratios too rich	Manny	Sun, 29 September 2002 11:50
	Re: 1JZ: AF ratios too rich	jza70-mel	Sun, 29 September 2002 14:01
	Re: 1JZ: AF ratios too rich	BlakeNZ	Sun, 29 September 2002 21:50
	Re: 1JZ: AF ratios too rich	SUPRAGTE	Mon, 30 September 2002 02:27
	Re: 1JZ: AF ratios too rich	666supra	Mon, 30 September 2002 05:15
	Re: 1JZ: AF ratios too rich	biggav	Mon, 30 September 2002 11:35
	Re: 1JZ: AF ratios too rich	jza70-mel	Mon, 30 September 2002 13:42
	Re: 1JZ: AF ratios too rich	SUPRAGTE	Tue, 01 October 2002 09:55
	Re: 1JZ: AF ratios too rich	jza70-mel	Tue, 01 October 2002 11:13
	Re: 1JZ: AF ratios too rich	SUPRAGTE	Tue, 01 October 2002 13:12
	Re: 1JZ: AF ratios too rich	jza70-mel	Thu, 03 October 2002 12:19
	Re: 1JZ: AF ratios too rich	celicamad	Mon, 07 October 2002 04:19
	Re: 1JZ: AF ratios too rich	mx83toy	Mon, 07 October 2002 12:06
	Re: 1JZ: AF ratios too rich	mx83toy	Mon, 07 October 2002 12:09
	Re: 1JZ: AF ratios too rich	Soarer	Mon, 07 October 2002 12:52
	Re: 1JZ: AF ratios too rich	jza70-mel	Fri, 11 October 2002 12:16
	Re: 1JZ: AF ratios too rich	mx83toy	Fri, 11 October 2002 12:29
	Re: 1JZ: AF ratios too rich	biggav	Fri, 11 October 2002 14:52
	Re: 1JZ: AF ratios too rich	Soarer	Fri, 11 October 2002 16:23
	Re: 1JZ: AF ratios too rich	celicamad	Sat, 12 October 2002 11:05

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