Tricking the ECU to Relearn AF map - Page 4 - Toyota Yaris Forums

gwasabi · 04-15-2009, 07:51 PM

good good
now try the procedure

MGargano · 04-15-2009, 08:57 PM

Go straight to step 5? Or start by disconnecting the battery for a while and then do step 5?

gwasabi · 04-15-2009, 10:17 PM

Disconnect the battery first to reset the ECU

MGargano · 04-15-2009, 11:32 PM

Ok I'll disconnect the battery overnight and then start fresh tomorrow

Yoda · 04-16-2009, 11:16 AM

wait for the results buddy

MGargano · 04-16-2009, 12:39 PM

No oscillation at first start-up after reconnecting the battery, but I revved it heavy for a few minutes anyway. Still no CEL, but getting minor oscillation randomly when driving.

Yoda · 04-16-2009, 02:49 PM

:( sorry to hear that keep us mainly me posted lol

MGargano · 04-16-2009, 07:40 PM

Now I got CEL 3 times today as well as start-up and random oscillation :(

Yoda · 04-16-2009, 09:06 PM

:( o man keep hope alive

MGargano · 04-16-2009, 10:43 PM

... make that four times with the CEL, including heavy start-up oscillation. Also, when I press or release the gas pedal, the car jerks, like it's jumping. I'm quickly getting fed up with this TB. Ideas?

gwasabi · 04-17-2009, 05:32 AM

The jerking is normal. heavy DFTS.

That's wierd that method work for me with no oscillation problems....hmmmmm....Try driving couple more days and see if the ECU learns by itself

Yoda · 04-17-2009, 09:38 AM

yea mine jerks sometimes too. How long haveyou been driving on it? I forgot if you did the chip swap or not...

MGargano · 04-17-2009, 10:17 AM

Quote:

Originally Posted by Yoda

yea mine jerks sometimes too. How long haveyou been driving on it? I forgot if you did the chip swap or not...

No, I didn't do the chip swap and I don't want to, if I can avoid it. I'd hate to crack open the original TB since it's got less than 2,000 miles on it. It's weird cuz the jerking just started out of nowhere, along with the CEL.

MGargano · 04-17-2009, 10:19 AM

Quote:

Originally Posted by gwasabi

The jerking is normal. heavy DFTS.

That's wierd that method work for me with no oscillation problems....hmmmmm....Try driving couple more days and see if the ECU learns by itself

What's 'heavy DFTS'? I disconnected the battery again overnight and will start over today. I'll try driving it for a few days if I get any of these problems again.

hatchbackkid82 · 04-17-2009, 11:51 AM

One of the reasons i got rid of mine. I couldn't get the CEL off

. I did everyting possible, always got a CEL, i went 2 days at the most, before it came back on. I'll try this mod again in a few months, hopefully someone would have come up with somehthing else to get rid of the CEL, i did the chip swap and everthing. Nice mod, though just don't like driving around with that light on

Quote:

Originally Posted by MGargano

... make that four times with the CEL, including heavy start-up oscillation. Also, when I press or release the gas pedal, the car jerks, like it's jumping. I'm quickly getting fed up with this TB. Ideas?

*tk-421* · 04-17-2009, 12:06 PM

It's weird how some ppl still gets CELs even after doing the chip swap. I still haven't had a CEL, and I've been driving it pretty hard.

I think it has something to do with the serial numbers located in the bottom of each TB, but I can't tell for sure.

MGargano · 04-17-2009, 12:06 PM

Quote:

Originally Posted by hatchbackkid82

One of the reasons i got rid of mine. I couldn't get the CEL off

. I did everyting possible, always got a CEL, i went 2 days at the most, before it came back on. I'll try this mod again in a few months, hopefully someone would have come up with somehthing else to get rid of the CEL, i did the chip swap and everthing. Nice mod, though just don't like driving around with that light on

It's really not even the CEL that bothers me. I have the Scangauge, so getting rid of the light is a breeze. It's the start-up and random oscillation that's killing me. And I'd hate to break open my brand-new TB to do the chip swap and still be stuck with the same problem.

hatchbackkid82 · 04-17-2009, 12:08 PM

Wait so with the Scangauge hooked up to the car, your telling me the CEL never comes on or it comes on you just turn it off. Have you tried adjusting the idle? It's really simple to open up, nothin in there for you to really damage

04-15-2009, 07:51 PM	#55
gwasabi View User's Garage Drives: 07 Blazing Blue LB Join Date: Jun 2007 Location: Honolulu, Hawaii Posts: 692	good good now try the procedure __________________ Most Satisfying Crew Serious Business... MunkyWurks Garage - 8088488794

04-15-2009, 10:17 PM	#57
gwasabi View User's Garage Drives: 07 Blazing Blue LB Join Date: Jun 2007 Location: Honolulu, Hawaii Posts: 692	Disconnect the battery first to reset the ECU __________________ Most Satisfying Crew Serious Business... MunkyWurks Garage - 8088488794

04-17-2009, 05:32 AM	#65
gwasabi View User's Garage Drives: 07 Blazing Blue LB Join Date: Jun 2007 Location: Honolulu, Hawaii Posts: 692	The jerking is normal. heavy DFTS. That's wierd that method work for me with no oscillation problems....hmmmmm....Try driving couple more days and see if the ECU learns by itself __________________ Most Satisfying Crew Serious Business... MunkyWurks Garage - 8088488794

04-17-2009, 12:06 PM	#70
tk-421 Super Moderator View User's Garage Drives: 5D-07-LB Join Date: Jan 2007 Location: Dagobah Posts: 4,262	It's weird how some ppl still gets CELs even after doing the chip swap. I still haven't had a CEL, and I've been driving it pretty hard. I think it has something to do with the serial numbers located in the bottom of each TB, but I can't tell for sure. __________________ --[ FORUM RULES ]--[ SEARCHING TIPS ]--[ EYELIDS PICS ]--[ RBK SPOILER ]--[ BEST/WORST INVESTMENTS ]--

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04-15-2009, 08:57 PM	#56
MGargano Drives: 2009 Yaris Hatchback Join Date: Feb 2009 Location: NJ Posts: 792	Go straight to step 5? Or start by disconnecting the battery for a while and then do step 5?

04-15-2009, 11:32 PM	#58
MGargano Drives: 2009 Yaris Hatchback Join Date: Feb 2009 Location: NJ Posts: 792	Ok I'll disconnect the battery overnight and then start fresh tomorrow

04-16-2009, 11:16 AM	#59
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	wait for the results buddy

04-16-2009, 12:39 PM	#60
MGargano Drives: 2009 Yaris Hatchback Join Date: Feb 2009 Location: NJ Posts: 792	No oscillation at first start-up after reconnecting the battery, but I revved it heavy for a few minutes anyway. Still no CEL, but getting minor oscillation randomly when driving.

04-16-2009, 02:49 PM	#61
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	:( sorry to hear that keep us mainly me posted lol

04-16-2009, 07:40 PM	#62
MGargano Drives: 2009 Yaris Hatchback Join Date: Feb 2009 Location: NJ Posts: 792	Now I got CEL 3 times today as well as start-up and random oscillation :(

04-16-2009, 09:06 PM	#63
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	:( o man keep hope alive

04-16-2009, 10:43 PM	#64
MGargano Drives: 2009 Yaris Hatchback Join Date: Feb 2009 Location: NJ Posts: 792	... make that four times with the CEL, including heavy start-up oscillation. Also, when I press or release the gas pedal, the car jerks, like it's jumping. I'm quickly getting fed up with this TB. Ideas?

04-17-2009, 09:38 AM	#66
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	yea mine jerks sometimes too. How long haveyou been driving on it? I forgot if you did the chip swap or not...

04-17-2009, 12:08 PM	#72
hatchbackkid82 Drives: . Join Date: Apr 2007 Location: . Posts: 1,828	Wait so with the Scangauge hooked up to the car, your telling me the CEL never comes on or it comes on you just turn it off. Have you tried adjusting the idle? It's really simple to open up, nothin in there for you to really damage