COMPUTER READ CODES Questions

What Do These Mean. Current Code Po30 History Codes Po31, Po39,po52,po55,po98. Help Would Be Great.

Dtc' 412,332,538 Need Help With Trouble Shooting

I Have A 95 Chevy 3500 Td, I Would Like To Know What The Truble Codes Are And What Connecters To Jump On The Test Port To Pull The Codes.....

Code P 0404 What Does This Code Mean?

What System Effects This Code? Is There A Part I Have To Replace Or Do I To Trouble Shoot Some Electrical Components?

I Have A 94 Astro Van I Had It In The Shop And He Said It Had 2 Codes I Am Trying To Find Out What They Are And How Hard It Is To Fix Them...

How Do You Pull Codes

After Changing Fluid And Filter, Obd Code 1776 Reoccurs Occasionally

Dtc-p0172b, P0175b, P01507-sugestions

Unable To Find Reason Of Why Codes In Vehicle Done Diagnosis And Find Everything Ok