Poor Acceleration


Asked by Feb 03, 2016 at 03:19 PM about the 1995 Buick Riviera Supercharged Coupe

Question type: Maintenance & Repair

This question is relative to my 95 Supercharged Riviera. Initially the vehicle was running rough/lopping/surging while stopped in traffic and the code indicated TPS malfunctioning. I replaced the TPS and attempted to reset code but reading was still TPS. So we changed the TPS connectors/wiring and checked other wiring to try and find if maybe there were broken wires..none found, service engine light is still on but not getting a code.
Whereas the rough running/lopping/surging have gone away, the vehicle has poor/slow acceleration. In addition I have removed the
Catalytic Converter and checked/rechecked the fuel pump pressure. Any suggestion(s) will be greatly appreciated.

3 Answers


Replace air filter


Check your owners manual and see if your vehicle has this fuse (ETCS) Electronic Throttle Control System fuse. Replace if blown.


Clap!! Clap!! Well my mechanic and I have finally fixed the problem. The problems were in the ECM and that chip. Apparently doing the replacement of after market /replacement ECM's (not always the suggested route to take) the wrong chip was installed. During my research I located via a web site with information listing the correct ECM and appropriate chip for my vehicle. In addition I sought the assistance of the parts guys at our local GM dealer. They were willing to gather much needed information in assisting. The 95 Riviera is performing w/o any problems. I appreciate all of you that offered suggestions.

Your Answer

Add photo

Related Questions


Looking for a Used Riviera in your area?

CarGurus has 150 nationwide Riviera listings starting at $1,295.


Search Buick Riviera Questions

Buick Riviera Experts

#1 Alvin1966
Reputation 970
#2 Chris Kelley
Chris Kelley
Reputation 520
#3 Jason Zane
Jason Zane
Reputation 380
View All

Related Models For Sale

Used Buick Regal"
190 Great Deals out of 10,616 listings starting at $5,900
Used Cadillac Eldorado"
455 listings starting at $2,950
Used Lincoln Continental"
1,944 listings starting at $42,556
Used Chevrolet Impala"
937 Great Deals out of 35,886 listings starting at $700
Used Cadillac DeVille"
2,400 listings starting at $1,600
Used Buick Skylark"
120 listings
Used Chevrolet Monte Carlo"
13 Great Deals out of 2,073 listings starting at $2,900
Used Ford Mustang"
728 Great Deals out of 41,499 listings starting at $900
Used Chevrolet Corvette"
434 Great Deals out of 20,332 listings starting at $3,688
Used Chevrolet Camaro"
825 Great Deals out of 39,067 listings starting at $2,650
Used Lincoln Town Car"
49 Great Deals out of 2,401 listings starting at $1,542
Used Buick LeSabre"
16 Great Deals out of 2,600 listings starting at $1,450