Fuel trim readings

[Aj Conners]

Getting a couple of codes and they are confusing me along with the fuel trim readings.  Getting: P0300, P0301, P0302, P0303 & P1340 (all pending codes).  Looking at short term & long term fuel trim though it looks like bank 2 is an issue. These are from Torque Pro, waiting for Durametric to show up this week.

 

at idle:

STFT1: -1.56%

STFT2: 25%

LTFT1: 0

LTFT2: 0

MAF: 3.5 g/s

 

I have replaced:

all coils

all plugs

aos

upper & lower AOS tubes

oil filler tub at crank & middle accordion

oil filler cap

new battery

all new o2 sensors

 

First through was vacuum leak, but using carb cleaner all over the engine I can't find one anywhere.  If I take off the oil filler cap the car stumbles like I would expect it to.

 

[Loren]

 

It is always helpful if you tell us the exact model and year of the car.

[Aj Conners]

Sorry, forgot about that

 

This is on a 2000, 986 2.7 tiptronic

[mikefocke]

Any history you have would help too.  Miles on car. When did the problem start. Anything happen around the same time. That way when you bought it?

 

The fact that it is on a single side of the engine helps rule a few things as less suspect.  Use the Durametric to look at cam deviations.

[Aj Conners]

Am I reading the fuel trims correct though?  Bank one seems ok but bank 2 is running rich isn't it?  The codes are all for bank one. I thought anything less the 5% was normal for long term. 

 

Cam deviation is the first thing in the list Wednesday when it arrives. 

 

Car had been running great then strmarted to through temhe misfire codes. 

 

I have a new cam sensor but haven't installed that yet, waiting to see what the timing is first. 

 

Car now has 106k miles on it. Bought it 2 years ago needing a coolant hose replaced for a steal. Needs a paint job bad and new seat covers, but I have a set of gt3 seats coming in that I will recover then next summer it's off to get a new paintjob. 

 

Since I have had it I have done all brake pads and rotors and normal oil changes. Had been running great the past 2 years. 

[Aj Conners]

Got my durametric today.  Having problems with it though.  every time I go to activate cam 1 adjustment it stops communicating.  Was able to get the cam & deviations though.  

 

 

2018_12_18_17_03_10.xls

2018_12_18_17_12_02.xls

[Aj Conners]

I am starting to think this is a wiring issue.  Also getting a oil temp low code.  Reason I am thinking wiring is that the oil temp sometimes showed the temp, but then it would just flatline back down.

 

[Aj Conners]

including an export from Durametic.  Captured a bunch of fields.  Reason I think this is a wiring issue is that if you look at the oil temp it swings very wild and I believe that the wiring for the cam sensor and oil temp sensor are right by each other.

2018_12_19_17_50_01.csv