Raiderfan717171 Posted April 27, 2022 Report Share Posted April 27, 2022 So I just replaced the head on the bank 2 side. Ran great for 2 days, then today the engine light came on and the corresponding code it gave was P219b.... no other codes. I've visually inspected all connections I can see as well as looked for any soot I could see from the catalytic converter and all of the exhaust. All connections are solid and I saw no soot. I'm gonna take it down to the valve cover tomorrow to inspect that and all coil and injector connections. Any ideas on what I should look for as well? Would a not tight valve cover possibly create this code? I tightened it down to the specs and pattern it said to do so. Quote Link to comment Share on other sites More sharing options...
John/Horace Posted April 27, 2022 Report Share Posted April 27, 2022 I’m vey impressed with your timing chain/cylinder head work. Not a easy job on these cars. Is it running smooth ? I don’t think valve cover would be large vacuum leak category, would be oil leaks as well. I’m hoping map sensor or O2 maybe. Will take some trouble shooting. Off the google. Causes for this code may include: Engine vacuum leak (large) Defective oxygen sensor/s Burnt, chafed, broken, or disconnected wiring and/or connectors Engine exhaust leaks A faulty mass air flow or manifold air pressure sensor Bad fuel pump or clogged fuel filter Read more at: https://www.obd-codes.com/p219b Copyright OBD-Codes.com If the engine is running smoothly and the code P219B continues to be reset, start the engine and allow it to reach normal operating temperature. Allow the engine to idle (with the transmission in neutral or park). With the scanner connected to the vehicle diagnostic port, observe oxygen sensor input data on the data stream. Narrow the scope of the data stream to include only pertinent data and you will get a faster response. If the oxygen sensors are functioning normally, voltage on pre-cat oxygen sensors will cycle continuously between 1 and 900-millivolts once the PCM enters closed loop operation. Post-cat sensors will cycle between 1 and 900-millivolts as well but they will settle at a certain point and remain relatively stable) compared to the pre-cat sensors). Oxygen sensors which fail to cycle adequately should be considered defective if the engine is in good working order. In most cases, you will rectify this code by correcting a rich or lean running engine Raiderfan717171 1 Quote Link to comment Share on other sites More sharing options...
Raiderfan717171 Posted April 27, 2022 Author Report Share Posted April 27, 2022 Thank you John. Two things I should have noted were I replaced both o2 sensors and the map sensors back around October when I started having issues with this hunk of junk. I was getting the P0306 code so that's when I went in and changed spark plugs, coils and the fuel injector on cylinder 6....then I kept getting the po306 code and then got the p219b code as well back then.....after doing all I could, I took it to my mechanic who then did several tests and told me the head was bad.... Quote Link to comment Share on other sites More sharing options...
Raiderfan717171 Posted April 27, 2022 Author Report Share Posted April 27, 2022 Oh and yes it is running smooth....before I replaced the head it was not. Quote Link to comment Share on other sites More sharing options...
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