17544 - Fuel Trim: Bank 1 (Add): System too Lean : Need help
#1
17544 - Fuel Trim: Bank 1 (Add): System too Lean : Need help
Hi,
I have that DTC. I had a vaccum leak before. I fix it and it remove other codes. I now only have that one left.
What should I check on my 98 AUDI A4 1.8T Quattro to fix the error?
My symptom is a lack of acceleration. High cost in gas.
Injectors are good, no leak and O2 seams ok.
Someone told me to look at my MAF. How should I test? I clean it with brake cleaner in the past and no change. I have a VAG-COM ver 409.
Thanks and sorry for my mistakes in English.
I have that DTC. I had a vaccum leak before. I fix it and it remove other codes. I now only have that one left.
What should I check on my 98 AUDI A4 1.8T Quattro to fix the error?
My symptom is a lack of acceleration. High cost in gas.
Injectors are good, no leak and O2 seams ok.
Someone told me to look at my MAF. How should I test? I clean it with brake cleaner in the past and no change. I have a VAG-COM ver 409.
Thanks and sorry for my mistakes in English.
#2
Help is here:
<ul><li><a href="http://wiki.ross-tech.com/index.php/Fuel_Trim_Info">http://wiki.ross-tech.com/index.php/Fuel_Trim_Info</a</li></ul>
__________________
Andy
Andy
#4
Fuel Trim info "help" page . . Images would be helpfull.
Fuel trim info page talks about 2 fields in block 32.
When I measure that block on my 2.8, I'm seeing 4 fields each with different values.
For me, I've got 3.1%, -3.1%, 2.3% and -5.1% . I get about 150 g/s on my MAF reading before readline.
Sure would be nice to have more detailed examples of possible scenarios for diagnosis.
When I measure that block on my 2.8, I'm seeing 4 fields each with different values.
For me, I've got 3.1%, -3.1%, 2.3% and -5.1% . I get about 150 g/s on my MAF reading before readline.
Sure would be nice to have more detailed examples of possible scenarios for diagnosis.
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