1999 Pontiac Firebird "p1639" Questions

n o revs p1639 p1631 My generc code list says: P1631 - Theft deterrent start enable signal incorrect/Main relay malfunction (Power hold) P1639 - Vehicle ID block corrupted or not programmed. Scan the ...

my 2003 chevy impal idles very high an i found 3 codes that are p0113,p0401,p1639,can anyone help me understand whats going on p1639 is low a/c refrig. so that's not it. p0113 is low intake air temp. ...

I have a 2001 cadillac deville that won't start. I get code p1639 and when I try to start it all my lights inside flicker my speakers make weird sounds an my compresure makes weird sounds its like ...

My 01 blazer is showing code p1639....po440...po449....can't figure out where to start just put new transmission in about 3..4 months ago so I'm stuck need help Low battery? Could be shorted 5v ...

CODE PROBLEMS 2OO2 CHEVY BLAZER, KEEPS STALLING, CODE P1639 COMES UP WITH ONE OF THOSE TESTER THINGS, IM A WOMAN AND DON'T UNDERSTAND WHAT THAT MEANS. CAN SOMEONE HELP ME THANKS KIM transmission ...

i have a 2003 chevy impala an it idles very high, i found 3 codes that are p0113,p0401,p1639, can anyone help me understand whats going on the choke is stuck on your intake.

what does it mean when you get GM dtc code P1639 . on my code reader says O2sensor B1S1 fail lean to rich rich to lean response ratio mean ?would replacing the sensor fix it originally got a 5 v 2002 ...

a p1639 code on a 03 pontiac grand am That code is the 5 volt reference circuit for the a/c pressure sensor and the fuel tank pressure sensor. Disconnect either sensor, one at a time and check for 5 ...

...engine light on doesn't mean the ecu doesn't have on in memory.. So if you do have a code like p1639 then you have a bad accelerator ...

2003 cadillac dts, i have cods, p1822,p1842,p1843, p1639,i no what they say just dont no were to look, ing swich, will not lock,and indecater on dach stuck on dr, If the TCM detects a transitional ...