4A-GE 20V idling problem

Subject: 4A-GE 20V idling problem Sun Jul 07, 2013 9:06 pm

Hey guys,

My blacktop is currently having some idling problems after I reconnected the battery after installing an audio amplifier. It has started to rev at idle up to about 2 - 2.5k for a few seconds then will drop down to about 1 - 1.5k before raising again.

I have no idea what it could be and wondered if anyone else could shine some light??

Subject: Re: 4A-GE 20V idling problem Mon Jul 08, 2013 1:19 am

is your battery ok..and does the idle.problem still exsists whe. the amp is disconnected......also is the grounding ok

Subject: Re: 4A-GE 20V idling problem Mon Jul 08, 2013 7:21 am

Have you tried disconnecting the amp to see if it returns to normal? Maybe the amp is wired wrong.

Subject: Re: 4A-GE 20V idling problem Mon Jul 08, 2013 9:04 am

Make sure it has a good earth to bare metal, failing that make sure all yours wires, terminals etc are all nice and tight too.

Subject: Re: 4A-GE 20V idling problem Mon Jul 08, 2013 3:01 pm

have you removed one of the vac pipes

Subject: Re: 4A-GE 20V idling problem Mon Jul 08, 2013 11:03 pm

Okay... It randomly just fixed itself.
I'm going to install a vacuum block at some point soon

Subject: Re: 4A-GE 20V idling problem Tue Jul 09, 2013 9:32 am

Oh, I guess you disconnected the battery when installing the amp? It sounds like the ECU got reset, and it had to do an adjustment to relearn the right settings.

Subject: Re: 4A-GE 20V idling problem Tue Jul 09, 2013 9:07 pm

Yeah that's what an audio specialist suggested. Thank toyota for self learning ecus... Even seems to be running better than ever now

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