No I don't have a code reader but I'm sure that I should get one. I'm probably gonna have to do a research on that in order to find out which one I should get.
In my case everything started with the check engine light and significant decrease in engine power . I disconnected the battery for about 10 min and when I connected battery back the check engine light never came back again, no matter if the MAF was connected or disconnected.

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Only GOD can judge me !!!
DINAN upgrades - too much to list !