xander123
Probationary Member
- 22
- 3
- May 29, 2021
-
Edmonton,
AB_Canada
I just got my car running again, old spark plug wires were 8mm but they were worn so I replaced them with a spare set. Before this the car ran as normal, but the new set is only 7mm, and those and spark plugs are the only things I've changed.
Yesterday at WOT, car hit a super aggressive fuel cut in first gear, so I pulled over to make sure all sensors and everything were connected. I tried again to see if I was overboosting but I was only hitting about 10psi, when normally I’m at about 12.5. The car also sputtered, seemed like it was struggling to burn the fuel maybe? When it stopped sputtering it backfired about 4 times.
So I’m thinking maybe my spark plugs or the wires are causing something? My exhaust is also leaky so I was wondering if my o2 sensor would be reading wrong and then causing the ECU to do something?
1990 tsi
gm maf
550 injectors
small 16g
Yesterday at WOT, car hit a super aggressive fuel cut in first gear, so I pulled over to make sure all sensors and everything were connected. I tried again to see if I was overboosting but I was only hitting about 10psi, when normally I’m at about 12.5. The car also sputtered, seemed like it was struggling to burn the fuel maybe? When it stopped sputtering it backfired about 4 times.
So I’m thinking maybe my spark plugs or the wires are causing something? My exhaust is also leaky so I was wondering if my o2 sensor would be reading wrong and then causing the ECU to do something?
1990 tsi
gm maf
550 injectors
small 16g
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