Hi Please Help
Lets start with the simple stuff.
I have a UK Audi A4 (190 6speed Manual) 1.8t B6 year 2004 BEX engine.
I had the engine light come on with the code for lean bank 1. The only code that has come up on my laptop reader. I consider my self good at fault finding, but this is starting to wind me up now.
So i went through the following to iron out that fault.
1. Oil (Audi equiv) & Filter change.
2: New Bosch super4 spark plugs x4.
3: New set of Coil Packs x 4.
4: Replaced the PCV Valvle & attached 3 way hose for good messure.
5: Ran tank dry and filled up and used Redex fuel system cleaner.
6: Cleaned Air mass housing and grill. Replaced Air flow Mass meter. (OEM Equiv)
Cleared the code yet still runs miss firing and top end speed very poor.
Using alot of fuel due to running rough too.
So i replace the spark plugs with Bosch again.
Checked they all were firing, which they were.
All coils firing and in firmly.
Put old air flow meter back in & it ran very rough, so knew the new one
was ok. So put back in. Reset all codes & went off again.
It still is very rough yet no engine light yet.
Any help please?????!!!!!!