I am facing an issue,my check engine light is on and after scanning its giving me P0172 system too rich bank 1.
inspected all vacume pipes and cleaned
MAF reading is 0.7lb/min at idle
I changed my air filter, cleaned MAF sensor, clean downstream o2 sensors bank 1 upstream o2 sensor
Inspected all pipes for any leakage
Cleaned the spark plugs of bank 2 only, as the other side spark plugs are not reachable due to supercharger kit mounted on them.
But still obd2 code was present then i went to EFI mechanic he said posibly your bank1 cat converter is bad and he opened that it was clear he cleaned it fix that back
And then p0175 system too rich bank 2 came also
Now p0172 and p0175 are there system too rich both Then i changed my fuel and filled high octane and drive from gilgit to islamabad and removed the code through scanner. Same codes came back but after 200kms not as soon they were coming after 20kms
Can anyone please help me in this that what is actual problem ? And is that ok if i drive that to karachi with this condition ?
Should i go for fuel injector ls cleaning ??
I have original denso fuel injectors with life time warranty