Mechanics

CHEVY P1870, P0420

2000 Chevrolet S-10

Computer problem
2000 Chevy S-10 4 cyl Two Wheel Drive Automatic 100, 00 miles

P1870, and P0420 engine codes, ALSO oil pan leak. Is it true, you hav to remove engine to fix, any other way to fix?
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Glassrageous
March 28, 2008.



What is the oil pan doing? LEaking I assume? If so, Where?

The po420 is a cataylitic converter code that almost always ends up being the converter in my experience. It may also set when there is an air leak in front of the converter.

P1870 is " trans component slipping" usually not a good sign. On the brighter side it is easier to get the oil pan out if the trans is out, remove flexplate and it will come out

Tiny
Jack42
Mar 29, 2008.