Runs rough

JMS112294

MEMBER
1995 CHRYSLER LE BARON
6 CYL
2WD
AUTOMATIC
60,000 MILES

My car was getting about 400 miles to the tank of gas, now the gas consumption has increased, it also does out occasionally and has problems shifting gears.
I believe it is a computer chip causing the problem.
The check engine light has not come on or anything like that but I had a 1994 Lebaron that acted the same way. I took it in and they said it was a fuel sensor chip.
Where is the fuel sensor chip/on-board computer located?

1 Reply

CARADIODOC

MECHANIC
33,873 POSTS

There is no such thing. The engine computer is a complete system that looks at many sensor readings to determine fuel metering calculations.

There is different LeBaron models and they use quite different engine sizes and systems. The most common is the 4-door sedan with the 3.0L engine. The engine computers in those caused extremely few problems.

What I would be looking for first is a dragging brake. With that, you'll need to push further on the accelerator pedal to keep moving. That will ruin the fuel mileage, but the increased throttle is misinterpreted by the transmission, or by the transmission computer, as hard acceleration and the need to delay the up-shift points.

Stop on a slight incline, shift to neutral, release the brakes, then see if the car creeps down hill on its own. If it does not, we will need to look at the brakes.