jays01

recently i have fried a Q31 resistor in my p06 and p28 ecus that run my h22 i was told it was cuased by one of my intake sensors not be connect to the right sensor so im trying to see in any body can help me figure out what wires to to which plug
heres what i have:
-IAT(sensor on the left side of the intake manifold) wires RED / YELLOW-black stripe-IACV Black- Blue stripe / YELLOW- black stripe
----(i think its intake evap purge) RED-white stripe / GREEN- white stripe
-and then the sensor mounted to the box under the intake manifold
WHITE-ish wire/ BLack wire


can anybody confirm is this is right or wrong and if its wrong where to they go to make them right.

Fabrik8

Google "OBD1 honda pinout", you'll find what you need.

cr1m3rat3z

I'll check 4 ya by 2 morrow

eclispegs2008

ffsquad has it in their tech net section

jays01

thank for the help so far. ive search google, yahoo and ffsquad but all i would find is the ecu pin out in looking for the 4 2-wire plug that plug into the sensor on the mainifold and figure out which colors wires go to which sensor

eclispegs2008

is it hacked? No plug on the engine is the same besides the tps and map but those are diff lengths. ill try to look it up tonight or tomorrow deff

jays01

its not hacked. but the IACV, EVAP purge, IAT/IAB, AND the sensor under the intake all have a 2 wire grey plug.

the IAT i belive is right since its the only one that reaches far enough to it,(i could be wrong tho) but the other three are right in the same area.

i recenlty bought resistors to fix my ecu's and the was the discription under the product


Transistor for Honda ECU spots labeled Q34 or Q31

Q31 is the transistor that commonly blows up when someone plugs the Purge Control Solenoid plug into the IAT sensor.

which is why im trying to figure out whats pluged wrong.

i dunno if this will help any ethier but using the following pic i wrote how my ecu is wired up

cr1m3rat3z

on my lude colors are as follows
iac yell/blk blk/blue
evap purge blk/yell red/grn
iab blk/yell pink
iat red/yell grn/wht

jays01

that exactly what i needed thank you. my evap purge and iat were switch hope fully my car will run right now