2001 Volvo S40 CEL, HELP!
#1
2001 Volvo S40 CEL, HELP!
ok so long story short, i bought the car from a dealer, check engine light comes on after an hour... i guess i cant return it anymore sold as is... so i took it into oriley and i get 8 codes, P0101, P0131, P0107, P0301, P0302, P0303, P0131, P0107, i replaced the MAF sensor already to fix the p0101 but nothing, any ideas, my car stalls when on park.
#3
P0131 is a faulty top O2 sensor (aka upstream, lower O2 is downstream).
P0107 is the MAP sensor. The one located on the intercooler, top center. There is another on the intake manifold but it has a different trouble code.
The P0301, P0302, P0303 are engine misfire codes. This points to the need for a tune up which includes 2 coils, 2 wires, and 4 spark plugs.
If it were my car I'd give it a full tune up including a new upstream O2 sensor first then erase all the trouble codes. Now drive the car to find out which codes return.
P0107 is the MAP sensor. The one located on the intercooler, top center. There is another on the intake manifold but it has a different trouble code.
The P0301, P0302, P0303 are engine misfire codes. This points to the need for a tune up which includes 2 coils, 2 wires, and 4 spark plugs.
If it were my car I'd give it a full tune up including a new upstream O2 sensor first then erase all the trouble codes. Now drive the car to find out which codes return.
#4
#5
Hudini thanks for the reply, im gonna do that, full tune up, replace the 02 sensor and map sensor. hopefully that fixes the issue.
ESt6, thanks bud, i will also look into the iac, this is driving me crazy, good thing its nothing serious!
btw what would happen if i continue driving the car like that? i drive 90 miles a day, i prob wont be able to get the tune up done in a week or so.
ESt6, thanks bud, i will also look into the iac, this is driving me crazy, good thing its nothing serious!
btw what would happen if i continue driving the car like that? i drive 90 miles a day, i prob wont be able to get the tune up done in a week or so.
#6
Maybe lower than normal fuel mileage. Can't hurt it though. As long as it's cooling properly, not knocking, and has oil pressure it should be fine. If the IAC fails outright though it might not start without you feathering the throttle.
Just FYI, one poster here said he fixed a misfire by finding the cracked coil and used epoxy to seal it back up. Now I've not tried this so I'm just repeating what's been written. Notice the 2 coils and wires over the remaining 2 plugs are plastic? These can get hairline cracks allowing the spark to jump to the head instead of going to the plug. If you can find the crack you can repair it. At least I've read about it.
Just FYI, one poster here said he fixed a misfire by finding the cracked coil and used epoxy to seal it back up. Now I've not tried this so I'm just repeating what's been written. Notice the 2 coils and wires over the remaining 2 plugs are plastic? These can get hairline cracks allowing the spark to jump to the head instead of going to the plug. If you can find the crack you can repair it. At least I've read about it.
#7
Maybe lower than normal fuel mileage. Can't hurt it though. As long as it's cooling properly, not knocking, and has oil pressure it should be fine. If the IAC fails outright though it might not start without you feathering the throttle.
Just FYI, one poster here said he fixed a misfire by finding the cracked coil and used epoxy to seal it back up. Now I've not tried this so I'm just repeating what's been written. Notice the 2 coils and wires over the remaining 2 plugs are plastic? These can get hairline cracks allowing the spark to jump to the head instead of going to the plug. If you can find the crack you can repair it. At least I've read about it.
Just FYI, one poster here said he fixed a misfire by finding the cracked coil and used epoxy to seal it back up. Now I've not tried this so I'm just repeating what's been written. Notice the 2 coils and wires over the remaining 2 plugs are plastic? These can get hairline cracks allowing the spark to jump to the head instead of going to the plug. If you can find the crack you can repair it. At least I've read about it.
#8
I'd be suspicious of those comments since the check engine light was off before you drove it. Did you have the codes erased? Once erased the check engine light will go out. If the problems persist the light will return.
When you say random stalling does that mean you cannot keep the engine running when this happens? Or is it a sudden failure like an OFF switch? Does the car always restart immediately?
When you say random stalling does that mean you cannot keep the engine running when this happens? Or is it a sudden failure like an OFF switch? Does the car always restart immediately?
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