1989 Camry surges and looses power at highway speeds.

Hello anonymouse,

RockAuto says... "electric sensor"


1989 TOYOTA CAMRY 2 5L V6 Speed Sensor RockAuto

Problem with electronic throttle control maybe. Any light's lit on the instrument cluster or messages engine power reduced . Could be a sign a position sensor is going bad . The gas pedal assembly has to sensors as does the throttle body . You could try cleaning the throttle body bore . Having a qualified repair shop hook up a diagnostic scan tool to view sensor data would be a good thing .
007 Idle Speed Problems Scan Data for Idle
1 reason your cars throttle body needs cleaning Gain lost horsepower and...

check the spark plug wires are attached all the way till it snaps, pull each spark plugs, any black deposits on any plug means it isn't firing(faulty plug,or wire) last of all take off each injector wire and notice if there is a change in idle speed (plugged injector)

I had a similar problem in a 1994 Taurus, and after spending nearly 300$ on ignition parts, it turns out the problem was a bad spark plug wire that cost me 8.88$ to replace.

Check the fuel filter, you may have clogged it when you filled the tank.

It is likely a coil. Cylinder number 1 and 4 are both on the same coil.

there are many reasons for this...it could be a stopped up fuel filter, to dirty injectors. I would change the fuel filter, then fill the tank, and add fuel injector cleaner, The gas we get these days is not what it used to be....try changing where you get your gas....hope this helps, and please rate me...thank you

try changing your fuel filter

I have had same problem I took off the gas cap and then put it back on and it seemed to fix the problem.

my 2 cents -

1. You didn't specify your exact model, on this site you'll fond your answer - http://www.fueleconomy.gov/feg/bymodel/1989_Toyota_Camry.shtml

2. There are a few ways to do this, here's one -
- Fill your gas tank to the very top.
- Write down your odometer or reset you trip meter.
- Drive your car till it's time to fill it up again.
- When it's time to fill you tank, fill it to the very top (preferd in the same station, in the same pump).
- divide the number of miles (or kilometers) you drive, by the amount of gas you filled, This is of course only true for this gas tank, fuel consumption is effected by many things, load, driver, type of miles you do (city or hoghway), etc..

3. Service your car regularly, make sure tire pressure is correct, don't drive like you are racing.

Good luck,
Eitan.