sweethatch1866

my eg hatch with b20 vtec swap is throwing the iacv and iat code. the sensors checked out according the the manual and the voltage from the ecu as well. I replace the sensors anyway. still throwing codes. Everyone has told me that i have the plugs mixed up, and i need to switch them. thats not the problem either. could it be a setting in the s300? the car has not been tuned. i dont want to take it to the dyno throwing codes. any suggestions would be appreciated.

JustaGSR18

are you sure they are not hooked up backwards? I have seen this many times they are the same plug.. look at the wires there should be a green/white and red wire at the iat i belive.. its deff not a setting in the s300, switch the plugs and see what happens

sweethatch1866

I already have! The iat gets a diff. signal from the ecu. I know they are hooked up correct thats whats got me confused.

sweethatch1866

bump

sweethatch1866

bump

JustaGSR18

in that case check your grounds maybe the ones that control those sensors broke off the adapter that bolts to the thermostat housing

boostedvenge

Have you ohm'd out the wires from the sensors all the way back to the ECU and verified the grounds are functioning properly?

5speedDriven

Possibly the ecu is storing the code..have you tried disconnecting the batt..to reset the ecu?

sweethatch1866

I have reset the ecu and checked the voltage coming to the plug but not the ground. Ill check that when I get home. im using a civic cx wiring harness that has alot of plug not in use mainly around the dizzy. could that be an issue? The shell has also been converted from auto to manual.

JustaGSR18

there will be 2 plugs near dizzy that arent used that are for the auto tranny