Came back from an errand today, the damn SES light came back on.
Code 63 this time, never had that one come up. Possibilities are the EGR, MAP, Righthand Oxygen Sensor ( on duallies ) or Crusie circuit.
Oh well, the parts lasted along time.
========= Harryface =========
1991 Pontiac Bonneville LE 3800 V6 ( C ), Black/Slate Grey _~_~_~295,965 miles_~_~_~_~_~_~_U.S.A._~_~_~_~_~_
~~~The Former Fleet ~~~
89 Cavalier Z 24 convertible 78 Holiday 88 coupe 68 LeSabre convertible 73 Impala sedan
I'd go around and clean all the grounds and open and close the connectors.
Hi...
I'm not a car guy, just an old retired electrical guy who likes cars.
Having first warned you :) - my book says "MAP sensor voltage high (low vacuum detected)
For what it's worth.
Ken
Scott Buchanan wrote:
The Pontiac Service Manual says code 63 is the EGR valve, yet the handy dandy code scanner book from Acetron says a code 63 can be either a Small EGR failure, Map Sennsor - signal voltage high, Right Oxygen Sensor failure, ( on dual sensor vehicle ), or Cruise Control problem.
The SES light did go out, but the code is still stored. Car runs & starts fine. I have a beautiful cold right now so I 'll worry about it next week.
========= Harryface =========
1991 Pontiac Bonneville LE 3800 V6 ( C ), Black/Slate Grey _~_~_~296,153 miles_~_~_~_~_~_~_U.S.A._~_~_~_~_~_
~~~The Former Fleet ~~~
89 Cavalier Z 24 convertible 78 Holiday 88 coupe 68 LeSabre convertible 73 Impala sedanMotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.