Hey, I just got my car back from Mazda. My car's Service Engine Soon light came on, took car in to Mazda and they had to replace one of my coils and Spark Plug #1 (not all 4, why not???) Second, he said with the modifications made to the car it was iffy if it was covered under warranty but he went ahead and covered it.. All I have done is redo all engine compartment grounds with 4 Guage ground. All original grounding points. Injen CAI, Yellow top Optima, and for sound system I run around 1500Watts, @ about 60-80% most the time..

Do you think this amperage draw from the car stereo could have affected that coil or not?

Tell me what you think may have made that coil go bad, or did it just go bad on it's own?

Thanks for your input..

 

it went bad on it's own.

 

Driving back from Chicago.. (After warranty work completed) The car started to miss fire REALLY bad again.

Taking it into Mazda again today, and they will try and diagnose the problem again. Do you think my system could be causing this, because of the serious amperage draw I have? My amps alone are rated TOTAL at like 140 Amps..

What do you think the problem could be. Computer possibly?

Let me know what any of you think.

 

I have well over 140 AMPS running offf from my battery, 3 amplifiers and neon kits. I have not had any problems like that, the only thing that I have experienced is my headlights would dim out, so I bought a 2 farrod capacitor to fix it.

 

I have also redone all my ground points under the hood including the fuse box and factory ground on drivers side strut tower. All with self made 4 Ga. Stinger Expert wire and correctly crimped gold plated ring terminals.. and a CAI, they replaced the other coil last week and said well with the modifications made to this thing it's iffy, but I'll go ahead and cover it.

I think that is BS if you ask me, but it won't have anything to do with ground will it.. What do you think about the ECU???