2001 Ford Ranger Rough idea

2001 FORD RANGER
174,636 MILES • 2.5L • 4 CYL • 2WD • MANUAL
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OCHOAS MOBILE
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Truck starts engine runs fine hit throttle engine runs rough for a few seconds then returns to normal ideal . Changed plugs, wires checked coils and changed Iacv . Had code for #2 cyl misfire but that takes forever to duplicate. I think code comes on per the rough idea thinking injector ?
Nov 20, 2014 at 4:22 PM
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JOHNNYT73
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try testing the throttle position sensor, Cleaning throttle body, and check MAF sensor.
Nov 20, 2014 at 4:41 PM
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OCHOAS MOBILE
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Yea was looking for specs on mad and tps but couldn't find it on web and autozone didn't have them . I did clean mag with a maf cleaner but no change ran com on it and the maf was around 54 and tps at 20 the only thing I seen on ho2 bank 1was 700 to 30 and bank 2 stayed higher 800 to 100 . I'm thinking they should be about same voltage. And thank you for helping me ... Appreciate it .
Nov 20, 2014 at 5:42 PM
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JOHNNYT73
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Try running some fuel cleaner through to see if it clears up at all (seafoam or lucas is good). Can you do a fuel pressure test?
Nov 21, 2014 at 6:48 AM
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OCHOAS MOBILE
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Hello put 2 types of sea foam in . 1 in crankcase and fuel tank and the other in the throttle body . Got 2 codes after burning up the stuff in the throttle body . One for bank 1 ho2 but I assume is because of cleaning the other was for p1401 DPFE sensor ,so replacing . I'll let you know how that goes .
Nov 23, 2014 at 1:31 PM
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JOHNNYT73
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ok, sounds good.
Nov 25, 2014 at 10:33 AM
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OCHOAS MOBILE
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Well I replaced DPFE and still has same issue but engine seems smoother and idel is not as bad but still shakes after pressing gas and then smoothed out . I have not replaced bank 1sensor 1 ho2 yet . Bank 1 and 2 are different volts 1 fluctuations are spurs tic and drop to 60 and 2 is more consistent. When I've done other cars they usually are around same volts . Would like your input on this . thinking fuel injector bad but it's not giving me a misfire code any more for 2 cyl . Or can it be valves ? I'm lost at this point .
Nov 25, 2014 at 12:23 PM