azJETSclan Posted January 31, 2020 Report Share Posted January 31, 2020 System was installed by Cre8tive Auto Sound (in Chandler AZ) & we put in a 320 Amp Alt. As I was bumpin my music, I would get the check engine line come on for a couple days, then off for a couple. ( I am NOT tech saavy, nor an installer of any kind. A hammer in my hand means DEMO ) Car is brand new (bought new, system after 1 year of failed shops & failed installs). Since it was due for an oil change, I brought it to the dealership. I knew I was going to get the "voided warranty" line because of the after market alt. What I DID get was the following codes P0626 (generator field/ F terminal circuit to high, P0620 Alt control circuit & P0507 Idle air control system -RPM higher than expected. The car is a 2018 Kia Rio (dont laugh, I got the cheapest car to have more for the system =P ) Im running 2 12's, 2 amp system with 2 north star batteries. (Most likely overkill, but rather more power than not enough I thought) Now, I am wondering if the installer did something WRONG? Missed a step or component? IS there a way we can step down the power to the car & route the extra muscle to the system for proper voltage? ORRRR, do I simply do as the dealership says & replace the original & use an isolator? Please speak simple stupid for me...so I can keep up with any & all suggestions. Thanks in advance for taking the time to read this. Link to comment Share on other sites More sharing options...
azJETSclan Posted February 1, 2020 Author Report Share Posted February 1, 2020 My understanding is...the new Alt is same dimensions as factory alt. BUT...it def is pissin off my cars computer Link to comment Share on other sites More sharing options...
Ron36 Posted February 1, 2020 Report Share Posted February 1, 2020 I’m sure the pulley is smaller which is causing all the trouble but it has to be smaller to put out the power, newer cars are very sensitive. Not sure what you can do . 2022 Ford Maverick on 22’s Skar SK1500.1 on 4 Skar VD-8’s Mids Sundown Super tweeters, Skar TX 6.5 components on Skar SKM400.4 LC2 for audio control , XS Power D680 XS Series Extra Battery Link to comment Share on other sites More sharing options...
azJETSclan Posted February 2, 2020 Author Report Share Posted February 2, 2020 14 hours ago, Gunnem said: are you sure the wheel is the same size? usually with a h/o alt upgrade you need a tighter belt I am not certain...I just pay for stuff 😃 I guess if nothing can be done about it...am I damaging my cars computer? Link to comment Share on other sites More sharing options...
deathcards Posted February 2, 2020 Report Share Posted February 2, 2020 so one thing is pissed it can't control alternator output idle air control system not sure on this check voltage while running there is much worse cars than a kia rio skar sk2500.1 0 gauge power and ground kunukonceptz alpine HUvxi65 components on BA gt-275new build log -> http://www.stevemeadedesigns.com/board/topic/150642-project-d-kon-deathcards-build-log/#entry2148821 2 x-15 sundowns singer alt, odyssey bat, and maxwell ultra caps Link to comment Share on other sites More sharing options...
Dragonsyph Posted February 2, 2020 Report Share Posted February 2, 2020 Buy a cheap bluetooth device that hooks into your cars computer slot and connect to it with your phone and it will tell you exactly what the check engine light is for. ♦ Sundown NSV4 18" + Sundown SALT-4 Baby ♦ MechMan Elite 370a + XS3100 - XP3000 ♦ SHCA 1/0 OFC(blue) + SMD Fuse Holders(blue) ♦ Pioneer AVH-2440NEX + SHCA Pro RCA Link to comment Share on other sites More sharing options...
azJETSclan Posted February 2, 2020 Author Report Share Posted February 2, 2020 This is the print out from the dealer. Finally have the system working & not blowing speakers...but I dont want to fry the cars computer when the car is pretty new. Link to comment Share on other sites More sharing options...
Kyblack76 Posted February 2, 2020 Report Share Posted February 2, 2020 What alt maker ?? Looks like its spiking. My old ass singer use to do that. It would also protect my RF amps. SMD SUPER SELLER The Burban Build Blazer Build sold Acura trunk build sold Link to comment Share on other sites More sharing options...
azJETSclan Posted February 3, 2020 Author Report Share Posted February 3, 2020 Link to comment Share on other sites More sharing options...
AaronT Posted February 3, 2020 Report Share Posted February 3, 2020 Well I'm sure he bypassed the PCM controlled charging and that is going to give battery light or check engine light Link to comment Share on other sites More sharing options...
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