Fig. Fig. 1: ALDL connector - 1988-92 models
1998-95 VEHICLES EXCEPT 1994 3.4L AND 3.8L ENGINES
See Figure 1
Listings of the trouble for the various engine control system covered in this manual are located in this section. Remember that a code only points to the faulty circuit NOT necessarily to a faulty component. Loose, damaged or corroded connections may contribute to a fault code on a circuit when the sensor or component is operating properly. Be sure that the components are faulty before replacing them, especially the expensive ones.
The Assembly Line Diagnostic Link (ALDL) connector or Data Link Connector (DLC) may be located under the dash and sometimes covered with a plastic cover labeled DIAGNOSTIC CONNECTOR.
The order of codes in the memory does not indicate the order of occurrence.
After making repairs, clear the trouble codes and operate the vehicle to see if it will reset, indicating further problems.
SOURCE: check engin soon light comes on 3.1engin buick regal 1995
i had auto zone check the computer and was told i needed two sensor and i like know where they are located and if i can installed them my self thank you beepa1
SOURCE: my buick regal check engine light came on 1999
that tell u that something is wrong, get a scan tool an pull the code.
SOURCE: Where is the location of the thermostat on '95 Buick Regal 3.1
Here's a link with pictures etc, you just have to scroll down page to 3.1L engine. Click on pictures to expand if necessary.
http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c15280067bd6
SOURCE: cant locate thre blinker flasher fuse on 1995 buick regal gs
I've had the same problem in my 1994 buick. The switch is in the steering column. Must remove aribag etc... I took mine in and got it fixed for $250.
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