I believe there is an oxygen sensor in each of the exhaust manifold outlets ( 2 )
on a 1993 Ford Ranger 4.0 liter
I'm not sure about 40% but it WILL reduce gas mileage I'm not sure about 40% but it will for sure reduce your gas mileage. 40% does extremely high for just one O2 sensor
40-16-02
40, 2%=.02, .8/.02=40
it could be the DPFE sensor that's what was causing my 02 to surge like that i was told that is a common sensor to go bad. it cost about 75 dollars and took me about 5 min. to replace.
The expression "4x4-40 89c" seems to be a combination of a mathematical expression and possibly some additional characters or context that isn't clear. If we focus on the mathematical part, "4x4-40" can be evaluated as follows: 4 multiplied by 4 equals 16, and then subtracting 40 gives -24. Without more context for "89c," it's difficult to provide a complete answer.
0W-40
Because 40=(4x10) 4x4=16 10x10=100 so 16x100=1600
4 x 40 = 160 if you know your 4 times tables, then 4x4=16 and then add a zero at the end. if it was 4x400, then 4x4=16 and because there is 2 zeros, then you add 2 zeros at the end which is 1600.
That sounds like its going to be either your camshaft position sensor or the crankshaft position sensor. I have a 02 durango with a 4.7 and it uses both. if its starts and all of sudden cuts out its your camshaft sensor a 40 dollar part that's pretty easy to change.
purchase an actron sensor tester for about $40 and follow the directions
35 to 40 psi is good
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