lower idle speed after Big 3

[chay03 10+ year member]

Does anyone know why? I have an 05 corolla and just did the big 3 with 0 gauge wire. I immediately notice my idle speed is down from about 9.5 to 8. It feels like it might stall.

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[Supergumby5000 5,000+ posts]

make sure all your terminals are crimped/soldered/whatever well, and make sure your battery terminals are nice and snug.

 

[GlasSman#1 10+ year member]

You might have some bad connections that your alt is over compensating for.

 

[EuphoricBass247 10+ year member]

ecu just has to reset.

 

[phemps 10+ year member]

ecu just has to reset.

i think this might be it

 

[fasfocus00 5,000+ posts]

i'd reset your ecu so it can relearn with the big 3 done. unhook your positive and negative terminals from you battery for 15 minutes.