Vehicle make/model = 1998 Pontiac Transport
Mileage = 180328
Engine size = 3.4liter
dash lights = Yes service engine soon
codes = P1665, P0452 and P0440
work done prior = The service engine lite has been on sense I bought
the car. I had the transmission replaced because 1st and reverse were
shot. And the van runs great, but my gas mileage has gone way down and the
service engine lite wont shut off.
work done to repair = I replaced the transmission and replaced the gas
cap. The front brakes and calipers were replaced too.
tech = a true honest mechanic
question = The service engine lite has been on sense I bought the car.
I had the transmission replaced because 1st and reverse were shot. And
the van runs great, but my gas mileage has gone way down and the
service engine lite wont shut off.
Could this be an oxygen sensor problem?
JK:
p1665 - EVAP system vent solenoid circuit.
p0452 - fuel tank pressure sensor circuit low voltage
p0440 - general EVAP system problem
Something in common with these 3 codes is the fuse labeled " CAN VENTSOL"
which stands for Canister Vent Solenoid. If this fuse is blown, it will cause all these codes.
If fuse OK, then possibly a problem at the fuel pump assembly connector on top of the fuel
tank.
Another area that can cause electrical problems with these circuits is a pass-through
harness connector under the van. Sometimes it gets corroded and can cause these codes.
Back
Mileage = 180328
Engine size = 3.4liter
dash lights = Yes service engine soon
codes = P1665, P0452 and P0440
work done prior = The service engine lite has been on sense I bought
the car. I had the transmission replaced because 1st and reverse were
shot. And the van runs great, but my gas mileage has gone way down and the
service engine lite wont shut off.
work done to repair = I replaced the transmission and replaced the gas
cap. The front brakes and calipers were replaced too.
tech = a true honest mechanic
question = The service engine lite has been on sense I bought the car.
I had the transmission replaced because 1st and reverse were shot. And
the van runs great, but my gas mileage has gone way down and the
service engine lite wont shut off.
Could this be an oxygen sensor problem?
JK:
p1665 - EVAP system vent solenoid circuit.
p0452 - fuel tank pressure sensor circuit low voltage
p0440 - general EVAP system problem
Something in common with these 3 codes is the fuse labeled " CAN VENTSOL"
which stands for Canister Vent Solenoid. If this fuse is blown, it will cause all these codes.
If fuse OK, then possibly a problem at the fuel pump assembly connector on top of the fuel
tank.
Another area that can cause electrical problems with these circuits is a pass-through
harness connector under the van. Sometimes it gets corroded and can cause these codes.
Back
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