Test W: Notes

WARNING: This page is about a different car, the 1987 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: See HOW TO USE CIRCUIT TESTS before performing this test. Fuel contaminated engine oil may affect service codes 41 and 42. If this is suspected, remove PCV valve from valve cover and repeat QUICK TEST . If problem is corrected, change engine oil and filter.