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ECMlink Idle surge-did aBLT already

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phantom_19

15+ Year Contributor
410
2
Oct 13, 2007
curacao, South_America
Hi

I have a 93 TSI awd with ECM link. I used the BLT tool to identify any leaks. The Biss isnt leaking. My ISC has good coils 32Ohms on all. The only leaks I have are the dipstick, the valve cover half moon gasket and an uncovered valve cover nipple that leaks. My EGR and FIAV have been deleted. 90's TB that is clean.

When I cold start the car. After 4 seconds it raises the RPM and cuts at 1.5K then drops to 1.1K . And surges in between. The car will be in open loop as you can see in the log. When the temp goes to 163 degrees I give it some gas. Then its starts flipping between open and closed loop. The base tune was good when I did it. 0.23 airflowperrev. IF you can look at the O2 sensor to see if its in working condition
 

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