i just did a obd2 b20z swap in my teggy,,, its been fine for 2 weeks now its throwing a cel 45 code......checked plugs, looks like normal wear..... any ideas


its a stock b20z with b18b intake mani
b18 pulleys
b18 obd2 ecu
cold ait intake
and header

it drives fine and reacts great

what is code 45?

RICH/ LEAN CEL
was thinking that i need a adj, fpr ?

could be a bad o2 sensor as well

Doubt its o2 sensor....jus replaced those like 6mths ago..... I reset ecu. Been driving. No cel light......I am gona get a adj fpr...see wat happens ne recommendations on which brand?

go with oem

Acura legends type II only has a Higher pressure FPR it bolts right up just saying

If it is my fpr.. wht psi is the legend one?

What is the full code number? If your are still OBD2 then the code will start with P---- for example a P0304 is miss fire cylinder 4. There will be a description after the code #. You said lean, lean bank 1 lean bank2. If you give me more info I can help you out. To start a lean code is almost always a vacuum or intake leak. Simple check is to spray carb cleaner around the TB, intake mani and vacuum lines while engine is running. If there is a leak then the carb cleaner will get sucked in, richening the A/F mixture and idle will increase. Dont waste your time on a fuel regulator.