Codes
What scan tool are you using, that you are getting C-codes, and not just P-codes (tired of reading/resetting the ABS computer with Tc/E1, wouldn't mind a reader that would read/reset the codes from the ODB-II port)?
Oddly, this has been reported in other threads to be caused by low running-voltage, and the GS is very sensitive to that. What is your voltage when the car is off, and when it's running? If it's below 14.4v when running, fix your voltage issue, and that might drive those codes away.
If 14.4v, seem to remember C020# is for bad signal, and C122# is for no signal (# changes for which corner the code is for). That says it's time to start replacing things, yet that can get expensive, and quickly.
Sensors aren't inexpensive, eBay has the right front for around $125, so start with the easy things, and see what your running voltage is.
What scan tool are you using, that you are getting C-codes, and not just P-codes (tired of reading/resetting the ABS computer with Tc/E1, wouldn't mind a reader that would read/reset the codes from the ODB-II port)?
Oddly, this has been reported in other threads to be caused by low running-voltage, and the GS is very sensitive to that. What is your voltage when the car is off, and when it's running? If it's below 14.4v when running, fix your voltage issue, and that might drive those codes away. Oh and It’s a 2001
If 14.4v, seem to remember C020# is for bad signal, and C122# is for no signal (# changes for which corner the code is for). That says it's time to start replacing things, yet that can get expensive, and quickly.
Sensors aren't inexpensive, eBay has the right front for around $125, so start with the easy things, and see what your running voltage is.
Last edited by BryanH19; Apr 28, 2019 at 05:01 PM.
Last edited by BryanH19; Apr 29, 2019 at 11:54 AM.
If the other shop read your P-codes, and the CEL was on before/after, sounds that you need to deal with it. Clear the P-codes, then see how long it takes to come back, if at all. If it comes back in a short period of time, sounds like it's just time to replace the 2nd cat on the car... the vehicle is 20yrs old, and (presumably) has a lot of miles. Looks like RockAuto has the part for about $250+shipping?
So guess, clear the codes, and see if they come back, and if so how long they took to come back.
For reading the odb-ii codes with our iOS device, we use something like this reader, yet it only reads P-codes:
https://www.ebay.com/itm/133019512581
and this program:
https://itunes.apple.com/us/app/engi...591557194?mt=8
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If the other shop read your P-codes, and the CEL was on before/after, sounds that you need to deal with it. Clear the P-codes, then see how long it takes to come back, if at all. If it comes back in a short period of time, sounds like it's just time to replace the 2nd cat on the car... the vehicle is 20yrs old, and (presumably) has a lot of miles. Looks like RockAuto has the part for about $250+shipping?
So guess, clear the codes, and see if they come back, and if so how long they took to come back.
For reading the odb-ii codes with our iOS device, we use something like this reader, yet it only reads P-codes:
https://www.ebay.com/itm/133019512581
and this program:
https://itunes.apple.com/us/app/engi...591557194?mt=8
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Clear the dash, see what light comes back, and how long it takes to come back, then start figuring out how to fix the problem...]
Clear the dash, see what light comes back, and how long it takes to come back, then start figuring out how to fix the problem...]



