Any car mechanics here? I have a question

[pillowtalk6188]

the diagnostic tester will not say anything if your check engine light is not on. depending on which plugs you got, yours may be under warranty. i'd def check that first. cheap wires are what they are, cheap.

[loperm]

i beg to differ the dianostic tool will get a code if one is still stored in the computer. the check engine can be out but the code not cleared. either way autozone has a website with repair manuals on it and they sell them at any auto parts store. the manual are reallly helpful and decently priced.