I did a quick search and was unlucky. Figured I'd ask in here.
I'm taking the financial plunge and purchasing a new cold start valve, in hopes of correcting my cold start issues; very rough idle/throttle response for the first 1-2 minutes, then smooth afterwards. As well as, rough start or no start if after the car is hot and try to start quickly without giving it any gas (assume the fifth injector is still giving the extra gas).
I was looking around for an explanation of the replacement process, as there is an active fuel line going to it. I plan on consulting my Bentley tonight, but in the interim thought I would ask those much wiser than me!
Please chime in!
As for the replacement process, tis very simple. Just the two obvious bolts, as well as the fuel line. You'll probably want to replace the two washers that seal on either side of the fuel fitting (they may well be included with the new CSV). I have re-used the sealing washers before but don't recommend it, by any means. Tis a five-minute job, ten if you really try hard...
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Check the cold start valve for leakage, test to see if it sprays while cranking cold.
If it passes those two tests, it's fine.
By symptoms you've posted, CSV is NOT the car's issue. As long as the CSV isn't leaking, it has ABSOLUTELY nothing to do with how the engine runs once it has started.
Have you found cabby-info.,com?
_____________________(hey, it's VW AND it's electrical, what's not to fail?)Originally Posted by kamzcab86
Since the thread is not resolved, I will just go ahead and add this:
I suggest checking the IGNITION SWITCH.
My Scirocco would start then run like the engine was about to fall out, until I replaced the ignition switch. Actually first I had reason to suspect the switch due to starting problems, but just adding a starter push-button switch did not help after it started.
IF you replace the CSV, I suggest flushing the line while the valve is off. Sludge can build up in the circuit due to the very low flow rate.