1998 LX470 engine missfire

[lexie98]

Hi i have a 1998 Lexus LX470 and have a constant engine misfire. Changed all coil packs , new plugs, injectors tested and still has misfire. no check engine light and no codes. car has done a lot of KMs 670k but runs great normally. compression is good on all cylinders and am at a loss as to the issue. Any ideas?

 

[3_puppies]

strange, a misfire should throw a code

 

[OEMGUY0720]

Do you have an OBD reader? What’s your short and long term fuel trims? What we are looking at is the reading for Bank 1 and Bank 2, they should be close if not identical.

 

[excessive]

Check your MAF, and grounds

 

[SteveH]

Big vacuum leak somewhere?