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After turbo install, getting check engine light.

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Old 03-13-2005, 08:30 AM
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Default After turbo install, getting check engine light.

OK I'm throwing code P1491 Auxilary Emissions Controls. I don't know what to do to fix it. I have a 98 Prelude and if you need any further information just post and I'll provide it. Thanks
Old 03-13-2005, 08:46 AM
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Default Re: After turbo install, getting check engine light. (meltman1234)

What type of engine management are you running? What is your setup?
Old 03-13-2005, 09:11 AM
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P1491: Exhaust Gas Recirculation (EGR) Valve Insufficient Lift

http://www.ttzd.com/tech/egrtech.html
http://www.fordscorpio.co.uk/egr.htm
Old 03-13-2005, 09:30 AM
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Default Re: (andysila)

Did you remove or block your EGR?
Old 03-13-2005, 12:01 PM
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Default Re: After turbo install, getting check engine light. (iconz116)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iconz116 &raquo;</TD></TR><TR><TD CLASS="quote">What type of engine management are you running? What is your setup?</TD></TR></TABLE>
Right now all I have is a VAFC. I'm planning on getting emanage (because tuner here uses it a lot) soon. But I don't have the money.(But I"m not really driving the car so I don't have to worry about much now.)

Setup is....
t3/t4 turbo
custom manifold
custom downpipe 2.5 inch
wastegate with 8 1/2 pound spring
stock internals
450 cc injectors
255lph fuel pump

I think that's it...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sharkcohen &raquo;</TD></TR><TR><TD CLASS="quote">Did you remove or block your EGR?</TD></TR></TABLE>
I don't know. I didn't install it myself. How can I check?

Thanks for the help.
Old 03-13-2005, 05:35 PM
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look by ur throttle body and see if your egr is still there.

it might be dirty, if its dirty take off the egr and clean it real good
Old 03-13-2005, 07:11 PM
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Default Re: After turbo install, getting check engine light. (meltman1234)

Do you even have a "missing link" since you don't have an engine management system?
Old 03-13-2005, 07:18 PM
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Default Re: (PrettyLude)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PrettyLude &raquo;</TD></TR><TR><TD CLASS="quote">look by ur throttle body and see if your egr is still there.

it might be dirty, if its dirty take off the egr and clean it real good</TD></TR></TABLE>
Ok. I'll do that today and come back with results.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NVturbo &raquo;</TD></TR><TR><TD CLASS="quote">Do you even have a "missing link" since you don't have an engine management system?</TD></TR></TABLE>
I have a VAFC with the VAFC hack.


Modified by meltman1234 at 8:00 AM 3/14/2005
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