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'90 240 check engine light but no codes
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'90 240 check engine light but no codes -
08-13-2009
, 11:33 PM
#2
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So the check engine light has been on in my friend's 240 for a couple weeks and he says the fuel economy has been lousy. I checked for fault codes and it flashes 1-1-1 which I gather means no codes are stored. I've never dealt with one this "new" so I'm not terribly familiar with it, but shouldn't anything that turns the check engine light on also store a code? |
computer. If the computer is defective, it might not be able to know
what code to flash.
The codes for 1989 to 1993 Volvos are at
http://www.troublecodes.net/Volvo/
--
Cheers, Steve Henning in Reading, PA, USA
Owned '67,'68,'71,'74,'79,'81,'87,'93,'95 & '01 Volvos.
The '67,'74,'79,'87,'95 and '01 through European Delivery.
http://rhodyman.net/homevo.html
#3
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So the check engine light has been on in my friend's 240 for a couple weeks and he says the fuel economy has been lousy. I checked for fault codes and it flashes 1-1-1 which I gather means no codes are stored. I've never dealt with one this "new" so I'm not terribly familiar with it, but shouldn't anything that turns the check engine light on also store a code? |
Both ecu says "111"?
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Prima di rispondermi devi togliere le dita dal naso!!! :-)
#4
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James Sweet ha scritto: So the check engine light has been on in my friend's 240 for a couple weeks and he says the fuel economy has been lousy. I checked for fault codes and it flashes 1-1-1 which I gather means no codes are stored. I've never dealt with one this "new" so I'm not terribly familiar with it, but shouldn't anything that turns the check engine light on also store a code? Hi, was checked both injection and ignition system? Both ecu says "111"? |
Does the ignition control unit store codes separately? How does one
check those? I thought everything was accessed through the one OBD
interface?
I used instructions I found online. Plug the probe into port 6 of the
diagnostic socket with the ignition key set to accessory and push the
button for 1.5sec, at which point I get three evenly spaced blinks.
OBD is cool, but it's a luxury I've never had.
#5
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Telespalla Bob wrote: James Sweet ha scritto: So the check engine light has been on in my friend's 240 for a couple weeks and he says the fuel economy has been lousy. I checked for fault codes and it flashes 1-1-1 which I gather means no codes are stored. I've never dealt with one this "new" so I'm not terribly familiar with it, but shouldn't anything that turns the check engine light on also store a code? Hi, was checked both injection and ignition system? Both ecu says "111"? Does the ignition control unit store codes separately? How does one check those? I thought everything was accessed through the one OBD interface? I used instructions I found online. Plug the probe into port 6 of the diagnostic socket with the ignition key set to accessory and push the button for 1.5sec, at which point I get three evenly spaced blinks. OBD is cool, but it's a luxury I've never had. A2 is Fuel Side |
Do the same for A2 & this is where you will find your code or codes
write them down so you do not lose track of what you started with
Glenn K
Volvo Certified Technician 2008
ASE Certified Technician 2008
#6
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Telespalla Bob wrote: James Sweet ha scritto: So the check engine light has been on in my friend's 240 for a couple weeks and he says the fuel economy has been lousy. I checked for fault codes and it flashes 1-1-1 which I gather means no codes are stored. I've never dealt with one this "new" so I'm not terribly familiar with it, but shouldn't anything that turns the check engine light on also store a code? Hi, was checked both injection and ignition system? Both ecu says "111"? Does the ignition control unit store codes separately? How does one check those? I thought everything was accessed through the one OBD interface? I used instructions I found online. Plug the probe into port 6 of the diagnostic socket with the ignition key set to accessory and push the button for 1.5sec, at which point I get three evenly spaced blinks. OBD is cool, but it's a luxury I've never had. A2 is Fuel Side |
Do the same for A2 & this is where you will find your code or codes
write them down so you do not lose track of what you started with
Glenn K
Volvo Certified Technician 2008
ASE Certified Technician 2008
#7
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Telespalla Bob wrote: James Sweet ha scritto: So the check engine light has been on in my friend's 240 for a couple weeks and he says the fuel economy has been lousy. I checked for fault codes and it flashes 1-1-1 which I gather means no codes are stored. I've never dealt with one this "new" so I'm not terribly familiar with it, but shouldn't anything that turns the check engine light on also store a code? Hi, was checked both injection and ignition system? Both ecu says "111"? Does the ignition control unit store codes separately? How does one check those? I thought everything was accessed through the one OBD interface? I used instructions I found online. Plug the probe into port 6 of the diagnostic socket with the ignition key set to accessory and push the button for 1.5sec, at which point I get three evenly spaced blinks. OBD is cool, but it's a luxury I've never had. A2 is fuel |
#8
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On 8/14/2009 9:44 PM, James Sweet wrote: Telespalla Bob wrote: James Sweet ha scritto: So the check engine light has been on in my friend's 240 for a couple weeks and he says the fuel economy has been lousy. I checked for fault codes and it flashes 1-1-1 which I gather means no codes are stored. I've never dealt with one this "new" so I'm not terribly familiar with it, but shouldn't anything that turns the check engine light on also store a code? Hi, was checked both injection and ignition system? Both ecu says "111"? Does the ignition control unit store codes separately? How does one check those? I thought everything was accessed through the one OBD interface? I used instructions I found online. Plug the probe into port 6 of the diagnostic socket with the ignition key set to accessory and push the button for 1.5sec, at which point I get three evenly spaced blinks. OBD is cool, but it's a luxury I've never had. A2 is Fuel Side A6 is Ignition Side Do the same for A2 & this is where you will find your code or codes write them down so you do not lose track of what you started with Glenn K Volvo Certified Technician 2008 ASE Certified Technician 2008 |
Ah, that's what I needed, thanks! Hopefully I'll have a chance to check
it out this weekend.
#9
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A2 is Fuel Side A6 is Ignition Side Do the same for A2 & this is where you will find your code or codes write them down so you do not lose track of what you started with Glenn K Volvo Certified Technician 2008 ASE Certified Technician 2008 |
So I finally had a chance to check this and it gave me 213. From what I
can tell, that's TPS signal stuck full rich, which would explain the
lousy fuel economy. I didn't have my multimeter with me so I couldn't
test the switch. Does a '90 have the older style TPS that is just a
couple of switches, or is it the later style potentiometer?
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