SES light problems
02-28-2003, 10:50 AM
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SES light problems Well been getting a SES light on and off for about a 1000 miles now. I just installed headers and a MAFT before this. I think I may know the answer to one of the problems but wanted to get your guys input.
The following SES codes:
P0404 - EGR Flow CKT Range/perf.
P0103 - MAF or VAF Circuit high input
The first code I think is a leak on the EGR tube where it meets my header because I reused the stock EGR gaskets. I bought a new AIR gasket but tried reusing the EGR. I know just spend the couple of buck and get a new one. <img border="0" alt="[bang head]" title="" src="graemlins/gr_banghead.gif" />
The other code I have no idea what would cause it. Any help would be appreciated. Thanks. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
The following SES codes:
P0404 - EGR Flow CKT Range/perf.
P0103 - MAF or VAF Circuit high input
The first code I think is a leak on the EGR tube where it meets my header because I reused the stock EGR gaskets. I bought a new AIR gasket but tried reusing the EGR. I know just spend the couple of buck and get a new one. <img border="0" alt="[bang head]" title="" src="graemlins/gr_banghead.gif" />
The other code I have no idea what would cause it. Any help would be appreciated. Thanks. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
02-28-2003, 11:02 AM
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Re: SES light problems Why didn't you bypass the EGR when you installed the headers? Install a block off plate. Cut some foam K&N filter material to the length and size of the inlet tube to the EGR valve. Shove the filter material up into the tube. Delete the code. DONE! A header install shouldn't case a MAF code since you don't touch the MAF while installing the headers or did you?
02-28-2003, 11:53 AM
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Re: SES light problems I would have deleted the EGR and AIR but dont have LS1 Edit. Also I installed MAFT at the same time as the headers.
Still not sure why the MAF code though. I checked the connections and they are all plugged in tightly. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
Still not sure why the MAF code though. I checked the connections and they are all plugged in tightly. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
02-28-2003, 01:14 PM
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Re: SES light problems I triple checked the connections. I know I plugged it in corretly because if you plug in wrong it can cause a hell of alot of problems. I also know that I plugged in correctly because the light comes and goes.
The SES light has never been on constantly just comes and goes. It also doesnt just come on when doing a WOT run either. I can just be cruising down the interstate and the light comes on. 3 engine cycles later it goes away and then comes back a couple days later.
Also I know that the header install did not cause the MAF code just trying to get two problems killed with one post. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
The SES light has never been on constantly just comes and goes. It also doesnt just come on when doing a WOT run either. I can just be cruising down the interstate and the light comes on. 3 engine cycles later it goes away and then comes back a couple days later.
Also I know that the header install did not cause the MAF code just trying to get two problems killed with one post. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
