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AceD909

Active Member
Jan 16, 2024
54
13
LCR 1.8T BAM
Hello, I have issues with STFT,
I have changed all vacuum hoses, TIP, stock DV, everything is good.
MAF and LAMDA are reading properly, even with MAF unplugged I have the same +25 STFT.

When I start the car STFT is 25%, doing misfires, after some time on idle it will settle down.

Another fault code i get even on idle is

17705 / P1297 / 004759 – Pressure Drop between Turbo and Throttle Valve (check D.V.!).​


When I remove the hose from the PCV that goes to the intake and install a new hose on the intake with a plug to seal the leak, the STFT is around -10%, and there is no fault code 17705 / P1297 / 004759 – Pressure Drop between Turbo and Throttle Valve (check D.V.!).


When I reconnect it as it should be and press the hose from the PCV to the intake with pliers, the STFT starts to drop.
I did suction pump delete, if needed i can get new one and put it all together.

Could all this be problem of PCV Bleeder Valve?
If PCV is bad, suggest replacement parts, i will try to get OEM tomorrow.

Thank you in advance.
 
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