Search found 31 matches
- 03 Jan 2013, 12:47
- Forum: 850, S70, V70, C70, V70-XC 1992-2000
- Topic: I sure thought the fuel pump relay would be it
- Replies: 48
- Views: 6971
Re: I sure thought the fuel pump relay would be it
I put the new MAF sensor in and have driven about 50 miles around town since. No hesitation or stuttering, or lag at wide open. I'm not 100% that I've solved the problem since I didn't have any symptoms before it died the first time, though. No codes on the computer, either, and before it was throwi...
- 28 Dec 2012, 14:42
- Forum: 850, S70, V70, C70, V70-XC 1992-2000
- Topic: I sure thought the fuel pump relay would be it
- Replies: 48
- Views: 6971
More troubleshooting and I got the car home
So, I go away for a week and ended up with a bunch more suggestions. Thanks, all! I went back to Redmond today to work on and pick up my car. It spent Christmas at work since I didn't trust it to get me home. In the meantime, I ordered and received a new MAF sensor and new vacuum elbows. I printed o...
- 21 Dec 2012, 15:13
- Forum: 850, S70, V70, C70, V70-XC 1992-2000
- Topic: I sure thought the fuel pump relay would be it
- Replies: 48
- Views: 6971
Re: I sure thought the fuel pump relay would be it
That's correct, I did have an O2 sensor and burning rich code. It did not throw those codes during my testing this morning though. Probably just didn't run long enough. From what I've read, I don't think a vacuum leak would cause a total engine shutdown. I have also seen some folks with a bad TPS wi...
- 21 Dec 2012, 13:47
- Forum: 850, S70, V70, C70, V70-XC 1992-2000
- Topic: I sure thought the fuel pump relay would be it
- Replies: 48
- Views: 6971
Re: I sure thought the fuel pump relay would be it
Well, it was only misbehaving once everything was nice and warm, after driving for some time. This morning was quite cold, so like my testing earlier this week, I'm not sure the car got hot enough to bug out. So you think the blip at WOT is a separate issue, or still related to my other problems?
- 21 Dec 2012, 11:12
- Forum: 850, S70, V70, C70, V70-XC 1992-2000
- Topic: I sure thought the fuel pump relay would be it
- Replies: 48
- Views: 6971
Re: I sure thought the fuel pump relay would be it
Okay, I have done some more testing this morning. Note that it's about 35F out right now, so that might be mucking with my results. I tried disconnecting the MAF (disconnect battery and drained system first). Car started fine and idled for about 15 seconds and shut off. It would start every single t...
- 20 Dec 2012, 19:51
- Forum: 850, S70, V70, C70, V70-XC 1992-2000
- Topic: I sure thought the fuel pump relay would be it
- Replies: 48
- Views: 6971
Re: I sure thought the fuel pump relay would be it
P0172 and P0133 are front oxygen sensor codes. More often they show up because of a vacuum leak, but sometimes the problem is the O2 sensor itself. You are going to want to check very carefully for vacuum leaks How are the vac lines? I agree with you about the misfire codes. I wouldn't replace the ...
- 20 Dec 2012, 18:12
- Forum: 850, S70, V70, C70, V70-XC 1992-2000
- Topic: I sure thought the fuel pump relay would be it
- Replies: 48
- Views: 6971
Re: I sure thought the fuel pump relay would be it
I got my code reader on and pulled the following codes:P0172 P0133 P1310 P0301 P0303 P0300 It's reporting O2 sensor is slow, car is burning rich and four misfire codes. I suspect the misfires codes are from me having to limp it to a parking spot this morning, but I'm not an expert. I have a MAF sens...
- 20 Dec 2012, 12:04
- Forum: 850, S70, V70, C70, V70-XC 1992-2000
- Topic: I sure thought the fuel pump relay would be it
- Replies: 48
- Views: 6971
Re: I sure thought the fuel pump relay would be it
One of my coworkers had a multimeter in his desk and I scrounged up a torx set so I could check the fuel pump coil resistance. 1 ohm, just like it should be. I'm debating driving over to a parts store to try to read the codes at lunch or just waiting for my wife this afternoon.
- 20 Dec 2012, 10:01
- Forum: 850, S70, V70, C70, V70-XC 1992-2000
- Topic: I sure thought the fuel pump relay would be it
- Replies: 48
- Views: 6971
Re: I sure thought the fuel pump relay would be it
I sorta doubt it's the fuel pump, they usually either work or don't. Or if they crap out, they do it quickly. But won't hurt to check. I didn't read the whole thread - have you checked the MAF yet? I have not yet. I can try that. One of my buddies at work is going to let me use his driveway and gar...
- 20 Dec 2012, 07:50
- Forum: 850, S70, V70, C70, V70-XC 1992-2000
- Topic: I sure thought the fuel pump relay would be it
- Replies: 48
- Views: 6971
Re: I sure thought the fuel pump relay would be it
I do not have a sufficient vocabulary to adequately express my current frustration. I drove my car to work today for the first time since doing all the repairs. Just to recap, here's what I've done: [*]Replaced fuel pump relay with brand new [*]Checked pressure at fuel rail and it was 38PSI at idle ...






