sorted my det-can sensor a couple of weeks ago with a 1meg ohm resistor, everything was going sweet, boostin properly etc then it jumped back into safety mode.

 

done a check and found code 33 & code 34.........

 

i've checked the connector for the o2 sensor and everyhting looks good (no corrosion etc)

 

 

does this mean that the resistor hasn't worked? showing up code 34 again?

 

if the connector for the o2 is not broke (corroded) how do i go about fixing it? will fitting divorced de-cats help or make the issue worse?

 

 

the car has an induction kit, back box, 1mm boost jets and chip by John Dixon.

 

(the car did pass its emissions test on its MOT on Saturday and the MOT tester even said it was running really clean :confused: )

Sounds like you have a break in the loom from the ECU to the connector which plugs into the det sensor loom (the short lead which goes under the plenum). I'd meter the wires from the ECU to the det sensor loom first. If it's open circuit then you could either rewire it or trace/repair it. If the det sensor and/or loom is duff too, I'd put the resistor inside the ECU. Can't remember what the pin numbers are now though.

Sounds like you have a break in the loom from the ECU to the connector which plugs into the det sensor loom (the short lead which goes under the plenum). I'd meter the wires from the ECU to the det sensor loom first. If it's open circuit then you could either rewire it or trace/repair it. If the det sensor and/or loom is duff too, I'd put the resistor inside the ECU. Can't remember what the pin numbers are now though.

 

 

ok, that makes sense. Does anybody know the pin numbers or have a diagram of what i need to do?

 

anyone help with the o2 sensor?

have you deffo got the connecors on the right way as the O2 and det sensor plugs are the same.

 

Vijay

yeah, i've not touched the o2 sensor until today......opened it.

 

once i done the resistor it was giving code 55 and boostin hard and strong.

 

i'm wonderin how it passed emissions if something such as the o2 sensor's not working :confused:

bump

ok, that makes sense. Does anybody know the pin numbers or have a diagram of what i need to do?

 

anyone help with the o2 sensor?

pin 23=dett sensor

pin 29 right side o2

pin 55left side o2

pin 23=dett sensor

pin 29 right side o2

pin 55left side o2

 

has anyone a diagram or instructions on how to do this at the ecu end??

have tried the resistor mod but still get code 34 so might try this if anyone can help

 

cheers

http://www.300zx.co.uk/forums/showpost.php?p=785998&postcount=10

has anyone a diagram or instructions on how to do this at the ecu end??

have tried the resistor mod but still get code 34 so might try this if anyone can help

 

cheers

to check signal circut continuity its pin 23 and right side terminal looking into it on the sensor plug

to check ground continuity its left side of plug looking into it and ground

and to fit the resistor to ecu i would expext to connect one end to pin 23 and other end to ground (but would have to check that one for sure) ;)

to check signal circut continuity its pin 23 and right side terminal looking into it on the sensor plug

to check ground continuity its left side of plug looking into it and ground

and to fit the resistor to ecu i would expext to connect one end to pin 23 and other end to ground (but would have to check that one for sure) ;)

 

cheers not to good at this lol

so would you solder it to the ecu pin :confused: or could you just take out the wire from the connection block and attach there :confused:

cheers

can anyone confirm that this is the right resistor,

 

resistor

cheers not to good at this lol

so would you solder it to the ecu pin :confused: or could you just take out the wire from the connection block and attach there :confused:

cheers

ide just slice it in and not disturbe the ecu side

can anyone confirm that this is the right resistor,

 

resistor

yep

ide just slice it in and not disturbe the ecu side

:slap: lol right just to confirm this splice into pin 23/wire on the harness side just after connector to ecu, one end of resistor spliced to 23 other end to earth ;)

:slap: lol right just to confirm this splice into pin 23/wire on the harness side just after connector to ecu, one end of resistor spliced to 23 other end to earth ;)

 

???

:slap: lol right just to confirm this splice into pin 23/wire on the harness side just after connector to ecu, one end of resistor spliced to 23 other end to earth ;)

 

anyone :rolleyes:

Yes, that should do it.

Yes, that should do it.

cheers john :bow: