SPONSORED LINKS

Diagnostic Touble Codes for Buick Century 1990

Tiny
RUTH HENDERSON
  • MEMBER
  • 1990 BUICK CENTURY
What are the meanings of the following codes:

13
26
27
28
44
48

my mileage is approximately 150,000 miles

A tune-up has been done, but the car gradually stalls and then completely shuts down.
SPONSORED LINKS
Tuesday, October 9th, 2007 AT 1:39 AM

1 Reply

Tiny
EDI3000
  • MEMBER
  • 34 POSTS
WELL YOU COULD SAVE A LOT OF RESEARCH TIME BY STATING YOUR ENGINE SIZE. ANYWAY, IT HAS TO BE A 3.3L AND NOT THE 2.5L
13 OXYGEN SENSOR OPEN CIRCUIT
26 QUAD DRIVER CIRCUIT
27 & 28 GEAR SWITCH CIRCUITS
44 OXYGEN SENSOR LEAN EXHAUST
48 MISSFIRE, PROBABLY CAUSED BY 13, 44
I WOULD SUGGEST CHECK THE FUEL PRESSURE WITH A GAUGE. CYCLE IGN ON AND OFF TWICE, ENGINE OFF. SHOULD BE 41-47 psi APPROX.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, October 13th, 2007 AT 2:32 PM

Please login or register to post a reply.

Related OBD1 Code 13 Content

VIEW MORE

Sponsored links