chipped and vtec converted p06, honda manual says it should be putting out "appox. 5 volts" to the IAT sensor. i have a code for the IAT sensor and when i check it, the sensor measures bad (infinate resistance), but i get 12 volts from the ecu, not 5v. could this be what killed the sensor? or is it ok to have 12v instead of 5v? i dont want to replace it and have the new one get fried imediatly.

 

Yea you fried the IAT...needs 5 volts

 

so the ecu is bad too?

 

Shouldn't be...I've fixed many wiring jobs where people fried the IAT by putting the iacv wiring to it. ECU was always fine.

 

ill go measure the voltage comming out of D15 and D22 at the ECU. but if it says 12v there it means the ECU is bad right? prolly means i fucked something up when adding the vtec parts.

 

I don't honestly remember the pin locations but the iacv is 12v the tps is 5v and the iat is 5v...just check at the sensor's themselves.

 

thats where i measured 12v at yesterday. that was with key on engine off.

 

also the iacv and tps are working fine. no codes for them, just the IAT.

 

Did you ever check?

 

HAH! i must have never actually measured it at the ECU because when i did just now i got 5v. i had an issue with a bad multimeter and i know i tested it but it must have been with the bad one. and then i got the new one and only tested the plug. which was the wrong one. it was to evap purge plug. thanx for the help everyone. and thanx to econobox for pinpointing the prob is 2 seconds flat!