Benefits Engine Reset/Relearn

Discuss any maintenance you've done to your Vibe & Matrix and ask how to perform maintenance on your vehicle
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zoomie
Posts: 59
Joined: Wed Jun 03, 2009 2:55 am

Benefits Engine Reset/Relearn

Post by zoomie »

I recently disconnected the battery for access to a fallen item and have been so far pleased that after noticing the engine relearn the idle revs this puzzling business of the engine wallowing below the warmed up idle revs of ~750 RPM to temporarily a somewhat shaky 500 when finishing a downshift out of 3rd, seems to have been resolved.I am going to make a point to do this disconnect twice a year since maybe the ECU can detect winter/summer gas (not suspected in above snag) to run more efficiently.Maybe some volks would like to add some benefits they've observed from doing a reset.
- 2009 1SA - 1.8L VVT-i 2ZR-FE - 5 Speed MT - TGMO 0W-20
Persephone
Posts: 191
Joined: Wed Oct 26, 2011 8:39 am
Location: Iowa

Post by Persephone »

How do you do this, sir?
My lovely Gambit.
09vGT
Posts: 1457
Joined: Thu Aug 13, 2009 10:36 am
Location: Little Rock, AR

Post by 09vGT »

I've done it like 4 times. Not to reset it, but to reset the radio. Mine likes to have a hiccup and forget how to spell anything like the words "VOLUME" or "EJECTING DISC" or "LOADING..." so I have to disconnect the batter instead of pulling the radio out every time. OH, and I've noticed NOTHING.
Persephone
Posts: 191
Joined: Wed Oct 26, 2011 8:39 am
Location: Iowa

Post by Persephone »

Okay, disconnecting the battery!
My lovely Gambit.
star_deceiver
Posts: 5800
Joined: Fri Jun 05, 2009 1:49 pm
Location: Airdrie, AB

Re: Benefits Engine Reset/Relearn (zoomie)

Post by star_deceiver »

Sometimes mine does this but almost always when stopping at a traffic light and only if I specifically stop in a certain way in 1st gear.
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lovemyraffe
Posts: 4288
Joined: Sun Oct 07, 2007 3:08 am

Post by lovemyraffe »

I haven't seen any benefits from resetting the ECU.
March 2011 MOTMFebruary 2010 MOTM My GenVibe garage
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jkm311
Posts: 1180
Joined: Tue Dec 19, 2006 7:13 am
Location: Royal Oak, Michigan

Re: (lovemyraffe)

Post by jkm311 »

I've done this after I clean my MAF sensor. It actually idles at a scary-low 400-500 RPM or so, giving the car a hell of a shudder (only when at stop lights) for about 20 minutes of driving. Then, it's smooth-sailing again once it learns my habits. I quite honestly don't see a whole lot of difference since I have been keeping up with my MAF cleanings. The first one helped a lot because I think I over-oiled my K&N drop-in air filter.
Steelies to the rescue.
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