Poor Acceleration
2,265

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

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
64,530

firebird338 answered 8 years ago

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

1 people found this helpful.
Mark helpful
2,265

Alvin answered 8 years ago

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.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Poor Acceleration 3 Answers

    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 ...

    1995 Buick Riviera Supercharged Coupe FWD

    -

    Maintenance & Repair

  • Brake light comes on and alarms with acceleration. 7 Answers

    Started out alarming about a year ago during hard acceleration and sharp corners, but now it alarms during light acceleration. Brake fluid was checked and it's ok. Anyone know how to fix this? Really ...

    1998 Buick Riviera Supercharged Coupe FWD

    -

    Maintenance & Repair

  • where is the coupler on buick supercharger located in the nose or tail? 2 Answers

    the noise appears to be coming from the tail end of the supercharger and I was told that this may be the problem the noise goes away upon acceleration there is 220000 mi on the car a garage diagnose...

    1995 Buick Riviera

    -

    Maintenance & Repair

  • starting problem 2 Answers

    After a heavey down poor and driving through puddles, the car shut off and will not start, even after two days of drying out.

    1996 Buick Riviera Supercharged Coupe FWD

    -

    Maintenance & Repair

  • 1998 Buick Scan Code for Service Engine Light being on 21 Answers

    I got the code P0304 when I hooked up to the scanner at the auto store. I took the print out to a reputable mechanic and he practically dismissed it and seemed to not be able to interpret what it mea...

    1998 Buick Riviera Supercharged Coupe FWD

    -

    Maintenance & Repair

Riviera

Looking for a Used Riviera in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Buick Riviera Questions

CarGurus Experts

  • #1
    Alvin Stokes
    Reputation
    1,910
  • #2
    Chris Kelley
    Reputation
    930
  • #3
    Jason Gee
    Reputation
    580
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Corvette
19 Great Deals out of 777 listings starting at $18,999
Used Buick Regal
3 Great Deals out of 20 listings starting at $6,395
Used Buick Skylark
1 listing
Used Chevrolet Camaro
15 Great Deals out of 467 listings starting at $11,999
Used Ford Mustang
30 Great Deals out of 1,599 listings starting at $7,999
Used Cadillac Eldorado
4 listings
Used Mercedes-Benz SL-Class
7 Great Deals out of 118 listings starting at $9,055
Used Chevrolet Monte Carlo
7 listings starting at $9,800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.