Location of oxygen sensors on 2002 dodge grand caravan with 3.3 liter engine after considerable maintance work done by a dodge dealer my gas mileage dropped by as much as 6 to 8 miles per gal. after a time i after dealer done routine maintence on my 2002 grand caravan with 3.3 liter eng.mileage droppe 6-8 mi. per gal. took car back to dealer was told oxygen sensors were bad. were are the oxygen sensors located on engine I

The crankshaft position sensor mounts to the engine block behind the alternator near the oil filter.

The size of the engine alone will not determine gas mileage. There are many other factors including vehicle weight, design of the motor, etc. So in answer to question 1, size isn't going to matter.

For question #2, make sure you change the oil, oil filter, air filter and keep the tires inflated to recommended specs. That might help you out a bit...

If you want to know more about you can visit :

P0032 - Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
A P0032 DTC (diagnostic trouble code) refers to the O2 sensor (oxygen sensor) located on Bank 1 in front of the catalytic converter. There is also an oxygen sensor behind the converter which is Sensor #2.

This O2 sensor #1 may also be refered to as an air/fuel ratio sensor since on some vehicles it is. The sensor detects the amount of oxygen in the exhaust gas compared to the outside air and then vehicle's computer adjusts the air/fuel ratio going into the engine. The sensor is less effective when the exhaust gas temperature is low, so it includes a heater which is activated to help get better readings from the O2 sensor. Essentially this P0032 code means that the resistance of the heater circuit is higher than normal. In some cases, that resistance level must be higher than 10 A to trigger the DTC code.

Note, this code is very similar in nature to P0031, P0051, and P0052

Most likely you'll not notice any symptoms other than the MIL (malfunction indicator lamp, a.k.a. the check engine light) will illuminate.

A P0032 DTC trouble code may be caused by one or more of the following:
A short in the heater circuit in the sensor
A failed O2 sensor heater
Wiring/connectors broken/frayed leading to sensor and/or relay
Failed PCM/ECM


I hope this helps, abd just keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment. Have a nice weekend and thanks for using FixYa.

Jose.

Rebuilt engine 3.0 liter. Gas mileage dropped to about 15. Put in new MAP sensor. Air filter staying clean. What else could it be

There are two oxygen sensors: one is upstream of the catalytic converter and one downstream of the catalytic converter. The oxygen sensor, or O2 sensor is usually located near the catalytic converter.Oxygen sensor downstream of the catalytic converter in the exhaust system on the back of the engine. ------- Thanks.Helpmech

its your van and you can do what you like with it,go for it.adrian,,,,,,,,

the censor is located adjacent to the throttle control linkage, and has a 3 wire connection plug

new spark plugs basic tune up this will fix it ,then fine the small vacuum leak fix it this should take care of it.

Hi bank 2 is reffering to the side of the engine that the #2 cylinder is on and sensor 1 will be the one up infront of the catylitic converter toward the engine!

try changing the oil also it will cause the engine to burn more fuel with bad oil because it gets hot and evaporates it alot more