Tim 98z

iTrader: (1)

Codes thrown were P0405/ P1404. E.G.R Sensor A circuit low/ System valve 2..
Anybody know what i can replace on my buddy's car to fix the problem? Or anyone know exactly what the problem is? I do have access to a-tap if needed to further trouble shoot (thanks to 1fstz28)
Car is a 98 t/a auto. I know that dont help but just through it in there. It also feels like a miss under VERY light throtle. Could this problem cause this miss feel? Thanks Tim 98z

Tom99SS

iTrader: (2)

If I remember correctly, '98's had an EGR TSB out. Since the EGR is an emission part I think it is covered for 5 years. Talk to a GM dealer about this. I would start there first as it would be free to fix (unless this TSB has already been taken care of for the car).

- Tom

<img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />

Tim 98z

iTrader: (1)

Thanks man!! Ill see what the dealer can do its a lightly modded car so no warrenty issue to worry about. He just didnt want tp pay a deductably on warrentee work of we could buy a $20 part to fix it! Tim

Tom99SS

iTrader: (2)

Let me know how it turns out. Hope this is the problem as it is a good place to start.

- Tom