1998 S70 GLT Starts then dies, drive with MAF unplugged
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1998 S70 GLT Starts then dies, drive with MAF unplugged
Grrr, this is my daughter's car about 1,600 miles away. It all started on 3/12 with P0243 & P0171 codes. Searched around a there were no clear answers but about 75% of the threads lead to a bad MAF. So I shipped her a MAF and after the MAF change, the car did NOT want to start. Start, run for a second, then die. So she pulled the MAF and the car starts and runs rough.
Thinking that used MAF may have been bad, I sent her one that I test on my turbo 850. Same thing, the car will not run with the MAF plugged in but will run rough with it unplugged.
So I had her reset the system by pulling the battery connectors and holding them together for several seconds. Then I had her unplug her ECU and plug it back in a few times while the battery was disconnected. Connected everything back up and has the same issue.
After driving the car a little, the only code now is the P0102 MAF code because she is driving with it disconnected.
Any suggestions before she takes it to a shop?
Thinking that used MAF may have been bad, I sent her one that I test on my turbo 850. Same thing, the car will not run with the MAF plugged in but will run rough with it unplugged.
So I had her reset the system by pulling the battery connectors and holding them together for several seconds. Then I had her unplug her ECU and plug it back in a few times while the battery was disconnected. Connected everything back up and has the same issue.
After driving the car a little, the only code now is the P0102 MAF code because she is driving with it disconnected.
Any suggestions before she takes it to a shop?
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Well, she could not find anything loose or leaking. Not sure if she had help.
She hooked up the MAF, got it running and kept it running for about 5 minutes by keeping the motor rev'd up but it would NOT throw a code so she gave up.
She has an appointment to have it checked out Tuesday am. Any other suggestions are welcome till then.
She hooked up the MAF, got it running and kept it running for about 5 minutes by keeping the motor rev'd up but it would NOT throw a code so she gave up.
She has an appointment to have it checked out Tuesday am. Any other suggestions are welcome till then.
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What was happening there was it was sucking in air and the MAF didn't know about it. While its sucking in air from somewhere else the MAF gets even less and the computer tries to adjust for it. When you disconnected the MAF there was no reading to adjust so that was why the car seemed to run better. Would have been great if she would have been able to spray some carb cleaner to find the leak. I know the cars fixed now but figured I would explain what was happening.
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Yea, I tried to tell her and hard headed boy friend. That's what you get when you let a Bengal work on your car. :/
This is what the mechanic wrote: "Vacuum & boost pressure leaks. Secured intercooler & reattach lower hose." The radiator was hanging down. I told them to look down there at the hose, even sent them a video.
This is what the mechanic wrote: "Vacuum & boost pressure leaks. Secured intercooler & reattach lower hose." The radiator was hanging down. I told them to look down there at the hose, even sent them a video.
Last edited by rspi; 03-26-2014 at 10:05 AM.
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