ok so heres whatsup...i swapped in a b16 into my 93 dx...ok wiring was obd1 motor came out of an obd1 ok no prob..car runs fine...well we had to extend the o2 wires for the new location of the o2....well my buddy made them to long and the wires were laying on the muffler and melted.....the wires all touched and check engine came on...i have tried 4 dif. o2 sensors..im on the second ecu and ive checked all the voltage numbers...all ok...what could be my problem?

 

well what you can do is check the ecu and find out what the code is..

 

its the code 41...oxygen sensor heater...??

^^^^forgot to mention that.....

 

all i have to say is get a chiped ecu and disable the o2 sensor, what happed is have a short in ur wires from the o2 to the ecu and on top of that u could have fried a part on the ecu.i dealt with this for months and the only thing that fixed it was the chipped ecu. good luck

 

quick question have you reset your ecu yet??

 

i just got a chipped ecu...for my turbo setup..and i wanted to run an air fuel gauge off the o2..would it be accurate considering the check engine is on becuase of the o2 heater...and i know i should get a wideband to be accurate but the regular one works for what i want to do i just want to know if i will get a good reading off of it still with the check engine on?

 

yeah tried it a million times...the 20 amp fuse in the engine bay...(backup) and the ecu fuse as well..nothing worked....

 

well if u want to keep the o2 sensor than ur gunna need to find the short and rerun the wires

 

well i ran the heater wire directly to the ecu with a whole new wire..didnt fix it...and as for the other wires they are all good...i tested them.....so im thinking its not a short...

 

1 theres two heater wires, 2 if u replaced the o2 sensor and reran the wires and still didnt work than its ur ecu

 

so the brand new ecu i just got is blown too huh?

and i didnt know there was two wires...

 

ttt