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Dan, ASE Certified Technician
Category: VW
Satisfied Customers: 1686
Experience:  Auto Technician
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Replaced battery and now starts then stalls, Had code P1128

Customer Question

replaced battery and now starts then stalls
JA: Is the check engine light on? Does the car stall at idle or when driving?
Customer: Had code P1128 then tracked down a crack in a hose that I replaced, then battery and cleared codes now this!
JA: What is the model/year of your VW?
Customer: 2000 Golf 2.0 150,000m
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: While feathering pedal can keep it running but jumps form 500rpm to 4k and back, waited till warmed up but still stalls after letting off pedal
JA: Anything else you think the mechanic should know?
Customer: hose came from enclosure in front of engine, smog? fan that runs at startup then turns off. Ran fine with crack, ran without hose, but the battery must of reset something
Submitted: 11 months ago.
Category: VW
Expert:  Dan replied 11 months ago.

Hello my name is***** am an ASE Master Technician and I am glad to help you out with your question.

Expert:  Dan replied 11 months ago.

Sounds like an IAC valve problem, I would also try to clean the throttle body and valve first. When you replaced the battery the computer lost the memory it had learned about idle air control. Check idle valve and throttle body for carbon build up.

Expert:  Dan replied 11 months ago.

Please reply to this if you need more help and we can continue this conversation. If you are satisfied with my service, please rate at the top of the screen. Rating does not close out your question. Remember, sometimes it is difficult to completely diagnose your vehicle without being there, but I will try to give you the best answer I can. If I am not giving you 5 star service, please let me know what I missed.



Expert:  Dan replied 11 months ago.

Hello again Dan here,

I am contacting you because the post has not been closed or rated.

This question is coming up on 7 days which means it will time out and close.

You have already paid to get this question answered, but you have not rated.

Let me help some more. Is there anything else I can help you with?

If I did not give you 5 star service, please let me know what I missed.

I do not get compensated for my time and resources unless you rate me.