error code 75 and 39 on a98 frontier 4cylinder

sointense · Jun 6th, 2004, 01:28 PM

Well the check engine lite came back.

After checking ECU with adjustment screw I get 2 sets of codes
7 long lites and 5 short lites (75)
and
3 long lights and 9 short blinks (39).

I can not find these codes in the service manual.

Can anyone help me with this?

sointense · Jun 6th, 2004, 02:12 PM

Quote:

Originally Posted by sointense

Well the check engine lite came back.

After checking ECU with adjustment screw I get 2 sets of codes
7 long lites and 5 short lites (75)
and
3 long lights and 9 short blinks (39).

I can not find these codes in the service manual.

Can anyone help me with this?

Answered my own question I think.
does anyone know if the book would display these codes as 0705
and 0309?

lewisnc100 · Jun 7th, 2004, 08:23 AM

Yes the MIL codes would show up as 0705 and 0309 which translate to P-codes. The 0705 = P0440 EVAP (small leak). Are you sure the 0309 isn't 0903, those two codes are pretty common for the EVAP canister vent control valve. I don't see 0309 in my 97 list.

sointense · Jun 12th, 2004, 07:17 PM

Quote:

Originally Posted by lewisnc100

Yes the MIL codes would show up as 0705 and 0309 which translate to P-codes. The 0705 = P0440 EVAP (small leak). Are you sure the 0309 isn't 0903, those two codes are pretty common for the EVAP canister vent control valve. I don't see 0309 in my 97 list.

They reversed it on the 98's I guess. Anyway I changed that Vent cylinder valve and the problems gone. 37 buck here on Long Island, NY

sointense · Jun 20th, 2004, 01:39 PM

Replace the VCV, 37 bucks in New York. Problem solved. Thanks to the info on the list!!!

Tody the blower switch took a dump. Will only work on high, checked the fuses, now I have to take the dash appart.