engine trouble

A section dedicated to Engine Mangement Systems & Engine Tuning. Megasquirt, SMS, Haltek, ect.
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brinson09
Junior Member
Posts: 10
Joined: February 5th, 2007, 2:43 pm
Location: Cin, OH

engine trouble

Post by brinson09 »

after the car has been running for awhile it will start to smoke. the temp gauge reads normal still. and then the other day i was going down my street at about 15mph and my rpms went to zero but the car didnt shut off. any suggestions would be greatly appreciated. thanks
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OROutdoors
Supporting Member
Posts: 339
Joined: December 4th, 2006, 4:38 pm
Location: Tigard, OR

Post by OROutdoors »

If the car was still in gear and the RPMs are reading zero while driving, then there's something wrong with the tach/it's connections/sensor.

If the car starts smoking after it warms up, but not cold, it may be caused by the piston and cylinder walls heating and expanding at different rates. Does the car behave in the same manner both with load (driving) and without (at stand still)? Have you checked the plugs and compression?
Oregon Outdoors
92 mx-3 GS lowered, CF hood
2013 Mazdaspeed3
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