1999 BMW 740 P1420 secondary air circute electrical

SCAR09FACE

MEMBER
1999 BMW 740
V8
2WD
AUTOMATIC
140,000 MILES

Does any body know what I need to do to fix this code? Please help!

Sunday, December 28th, 2008 AT 3:08 PM

3 Replies

2CARPRO JACK

MECHANIC
11,533 POSTS

Please be patient, I have sent your link to our resident BMW doctor.

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Tuesday, December 30th, 2008 AT 9:14 AM

DOCHAGERTY

MECHANIC
9,601 POSTS

If the fault was set for secondary air then there is a possibility that there is some restriction/occlusion built up inside the air injection ports and the carbon build-up will need to be removed, or the secondary air pump/secondary air injection valve is not working correctly. How were the fault codes extracted, what device was used?

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Tuesday, December 30th, 2008 AT 12:53 PM

SCAR09FACE

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I've used two difrent devises one from o'raileys and the other one from my friends shop and they both came up with the same code p1420 I would realy apretiate if u could give me a call if u can I can tell u a little bit better on whats been going on with the car my number is 979-627-3494

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Tuesday, December 30th, 2008 AT 2:20 PM