juanpc1404

Hello guys

I am Having trouble with my 1998 gs400 it been misfiring 225,000 mil

Codes
popping up are
p0300
p0301
p0303
p0305
p0307
p0300 P

and vcs lights also coming on

I just had a tune up done last year new plugs and filters and the OCV valve was also replaced along with the passenger side o2 sensor

coils where moved around by the mechanic and plugs where tested and they are working fine
the next step is doing a compression test.

Has anyone had this issue or can direct me to what would be the next test if the compression test comes out ok?

Thanks