1993 850 runs for 20 minutes then dies, often while turning
We have done everything suggested .. we have changed both the fuel filter and the pump. Removed relays and jumped them .. relays are still good. Really very confused .. it runs for about 20 minuted and just quits. Takes a few minutes for it to start again, and even then it seems to want to quit, sometimes even turning a corner makes it quit...
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erikv11
- Posts: 11800
- Joined: 25 July 2009
- Year and Model: 850, V70, S60R, XC70
- Location: Iowa
- Has thanked: 292 times
- Been thanked: 765 times
MAF is a mass air flow sensor. It regulates air:fuel mixture so has control over the fuel supply. The way to test it is to unhook it, and see if the symptom goes away.
When you disconnect the MAF the car will go into a default mode and still run OK, although it may smoke a little and long term it would be bad for the engine to not have a MAF. Disconnecting the MAF will also cause the Check Engine light to turn on, because there is no MAF. So you would have to reset that MAF code using an OBD2 code reader, or by going to Autozone where I am told they read and reset codes for free.
When you disconnect the MAF the car will go into a default mode and still run OK, although it may smoke a little and long term it would be bad for the engine to not have a MAF. Disconnecting the MAF will also cause the Check Engine light to turn on, because there is no MAF. So you would have to reset that MAF code using an OBD2 code reader, or by going to Autozone where I am told they read and reset codes for free.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6
153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6
153kgone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
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Ozark Lee
- MVS Moderator
- Posts: 14798
- Joined: 7 September 2006
- Year and Model: Many Volvos
- Location: USA Midwest
- Has thanked: 4 times
- Been thanked: 75 times
Does your Check Engine light come on at all, even with the key in position II?
If not it may be that the lamp has either been removed or it has been on so long that it burned out.
At any rate, you need to check for error codes on ports A-2 and A-6.
It is quite easy to do, here is how:
http://volvospeed.com/CheckEngine.php
Once you jot down the codes post them back and we can start to narrow things down. Your '93 has no OBD-II port and the auto parts store guys will just give you a blank stare if you ask them to check the codes. That is actually a blessing in that the OBD-I codes are actually more accurate than the OBD-II codes.
You can also turn off your service engine light via port A-7.
Press the button 4 times in about 3/4 to 1 second intervals.
Wait for the LED to come back on.
Press the button once and wait for the LED.
Press the button 5 times in the same approximate cadence as above and wait for the LED.
Press the button once.
At that point the LED should rapidly blink and the service light will be reset.
...Lee
If not it may be that the lamp has either been removed or it has been on so long that it burned out.
At any rate, you need to check for error codes on ports A-2 and A-6.
It is quite easy to do, here is how:
http://volvospeed.com/CheckEngine.php
Once you jot down the codes post them back and we can start to narrow things down. Your '93 has no OBD-II port and the auto parts store guys will just give you a blank stare if you ask them to check the codes. That is actually a blessing in that the OBD-I codes are actually more accurate than the OBD-II codes.
You can also turn off your service engine light via port A-7.
Press the button 4 times in about 3/4 to 1 second intervals.
Wait for the LED to come back on.
Press the button once and wait for the LED.
Press the button 5 times in the same approximate cadence as above and wait for the LED.
Press the button once.
At that point the LED should rapidly blink and the service light will be reset.
...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
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rspi
- Posts: 7303
- Joined: 5 November 2011
- Year and Model: 850 T-5R Wagon
- Location: Cincinnati OH
- Has thanked: 34 times
- Been thanked: 72 times
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Contact:
Contact rspi..
'95 855 T-5R M, Panther - 22/28 mpg, 546,000 miles
'95 955 T-5R Yellow Wagon, Lemonade, 180,000 miles
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Volvo's of past: '87 740 GLE, '79 262C Bertone, '78 264, 960's, '98 S70 GLT, '95 850 T-5R YellowVolvo Repair Videos
'95 955 T-5R Yellow Wagon, Lemonade, 180,000 miles
--------------------
Volvo's of past: '87 740 GLE, '79 262C Bertone, '78 264, 960's, '98 S70 GLT, '95 850 T-5R YellowVolvo Repair Videos
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