Having problems with your 1998 Toyota Camry ?

Fuel consumption is high and want to know what we should check

Posted / edited by AnonymousUser on : 01-06-2020

Answers :

Check or change the air filter first ... the adjustments for the engine are all automatic .. so they are constantly updated and regulated by a compugter... so if the computer is gettijg the correct information from its sensors then it will keep the engine tuned nicely ... usually if a sensor goes bad, that fact is noted by the computer and results in a check engine light ... however sometimes the computer can be fooled ... an oxygen sensor that is going bad can cause a rich mixture for a while before the computer finds out something is wrong .. a clogged catalytic converter will eventually be discovered but can cause reduced milage before that .. if something on the engine is making noise it can cause the "spark knock" detector to ****** the ignition timing resulting in poor gas efficiency (using poor grades of gas can do that as well) .. cleaning the throttle body can often improve things ... most troubles are automatically detected by the computer and are registered within it ... most auto parts stores will check for "fault codes" stored in the computer .. they usually do it free ... the dealer will do it for a price ... most fault codes will light the "check engine" light but to be sure you can have it tested .. they will plug in an external computer to a connector under your dash .. that will give you a history of anything that has gone wrong.. once in a while the computer becomes confused and needs to be reset to factory initial values .. thats best done at a dealer or someone that knows your type car well ... other things that can reduce milage are ... tire air pressure .. make sure all are to spec, fast starts (high acceleration) uses lots of gas ... wrong weight or old oil or use of fuel with octane rating lower than that specified .. sticking emergency brake .. driving with windows open increases drag and reduces mileage ..individual driving habits can make a big differrence ... in my case she gets 28 mpg on our little toyota .. i get 34 mpg in the same car. .. you cant expect eveyone to know the fine art of squeezing out the last drop in efficiency so you can expect variations ... ..
Sparkplugs, leads, clean air filter, tyres pumped up, brakes not dragging.
Basically , the cleaner your fuel burns, the better the economy, so a good spark and correct air/fuel mix are the trick.

Repair Help & Product Troubleshooting for 1998 Toyota Camry

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