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on a computer controlled vehicle you have to reprogram the computer and on an older vehicle with a carburetor you have to change the jets in the carb.

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Would a bad EGR valve cause a misfire on cyl 5?

It is possible but anytime I have a misfire read on any one cyl. it has been a bad fuel injector. yes it very much can it can throw off your airfuel ratio causing you engine not to fire correctly..


Which engine design would have a compression ratio of 23 to 1?

The Diesel


98 explorer check engine light lit wOBD codes 171 174 that say the airfuel ratio is too far out of spec for the control module to correct it. Could this simply be an O2 sensor gone bad or what?

Yes and no. I have a 99 explorer xlt, I found my thermostat stuck open which would not allow engine to come to operating temp. The o2 sensors only work properly if engine is at operating temp.It also could be the ECT sensor(engine coolant temp).I suggest changing thermostat first then clear code and drive 50-60 miles then retest.


What would be the air to fuel ratio of typical petrol engine at cruising speed?

14.7:1


How do you make a diesel car quicker?

diesel cars accelerate faster because a diesel engine produces over twice the torque of a gasoline engine. and the only way to make it go any faster would be to change the rearend ratio or get it tuned by a professional.


What is the difference between 1.52 and 1.5 ratio rocker arm and how will effect the engine?

Almost no difference at all. There would be no noticeable difference in the engine.


How much would cost to change gear ratio on a ford explorer 2004?

6000


Why compression ratio is greater than 1 in i c engine?

because a 1 to 1 comp ratio would not generateenough power to keep the engine to idle,the higher your ratio the more of a powerful stroke you will have. more power is good.a i c fuel engine will be between 9;1 to 11;1 race motors on hi octane around 14;1


If a engine to prop ratio is 32what is the engine RPM when the prop RPM is 1200?

If you mean a 32% step up from the motor , it would 909.09 RPM


How fast is a car going at 2000rpm?

That would depend on the gear ratio between the engine and the wheels, and in the diameter of the wheels. The transmission of the car lets you change the gear ratio, so in low gear the car may be going 15 MPH, while in high gear the car may be going at 70 MPH.


How fast will you go with just a differential and no transmission?

It would depend on the differential gear ratio and engine horse power/torque.


What do you change when you have a blown head gasket?

You would change the head gasket. You would also have the head checked for cracks and warpage. You would also change the engine oil and filter.