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Error Codes P0401 & P1684

 
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Old 07 Jul 2017, 04:20 pm
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Default Error Codes P0401 & P1684

2001 PT 102,000 miles. Non-Turbo.
Check Engine Light ON, Codes P0401 & P1684 which I understand should be ignored.
P0401 may be related to MAP need to cleaned? Should I just replace EGR and check related pipe or hoses for obstruction.

Any input, articles, videos would be greatly appreciated.
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Old 07 Jul 2017, 04:33 pm
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Default Re: Error Codes P0401 & P1684

The related pipes are know to clog up. I would check to see if it is clogged first.
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Old 07 Jul 2017, 05:00 pm
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Default Re: Error Codes P0401 & P1684

Quote:
Originally Posted by ptcruisersteve View Post
The related pipes are know to clog up. I would check to see if it is clogged first.
Thanks I'll do that first.
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