I have p20 code on my b20vtec sir head in a 1997 dx
my fuel presure is at 70 and my wideband tell me im at 17,5 on idle , can this code can give bad injector working?

 

Well fuel pressure up at 70 is a little wild. And you're still lean...

Fuel pressure should usually be 45-55 at idle.

Are you trying to compensate for not having bigger injectors?

Code 20 would be ELD. You should be able to turn that off in your tuning software. The eld tells the ecu when to put the alternator into high or low charge mode. Most people just lock the alt into high charge and the eld does nothing.

You run itb's or anything? Horrible fuel atomization can also cause unpredictable afrs

 

Yeah i try d16y8 injector and same problem
and p20 code doesnt influence my gaz problem ?

 

A code 20 eld should not affect fuel trims.

If you are talking about a p20 ecu, no unmodified stock ecu will run a b20v correctly. You need to tune it.

Do you have a stock fuel pressure regulator?

​​​​I would say get some 300cc+ size injectors so you can tune it better. All oem injectors are 240cc.