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2000 S4 Misfire Problem.

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Old 03-28-2011, 08:01 AM
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Default 2000 S4 Misfire Problem.

Replaced the TBB (034 silicone), Bypass Valves (with 710n) and after run coolant pump(034 Pump delete) over the weekend. Now I'm getting misfire problems. I also replaced the 2 plastic Y type connectors behind intake manifold with brass and the brake booster vacuum line.

I STFA and subsequently triple checked all my clamps. I tested for vacuum leaks by spraying brake cleaner on the vacuum connections. (Hoping to get a momentary increase in idle as an indication of a leak.) Didn't find any leaks.

Car is missing and holding back under load, check engine like blinks under load.

I'm hoping someone could help. I don't have access to a vag.
Old 03-28-2011, 06:33 PM
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you need to scan
Old 03-31-2011, 02:50 PM
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Originally Posted by drugmoney
Replaced the TBB (034 silicone), Bypass Valves (with 710n) and after run coolant pump(034 Pump delete) over the weekend. Now I'm getting misfire problems. I also replaced the 2 plastic Y type connectors behind intake manifold with brass and the brake booster vacuum line.

I STFA and subsequently triple checked all my clamps. I tested for vacuum leaks by spraying brake cleaner on the vacuum connections. (Hoping to get a momentary increase in idle as an indication of a leak.) Didn't find any leaks.

Car is missing and holding back under load, check engine like blinks under load.

I'm hoping someone could help. I don't have access to a vag.
You could ask for help from the VAG-COM scan tool list on VW Vortex.
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