LTX and LSXPutting LT1's, LS1's, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects, including repairs, swap info, and performance upgrades.
Welcome to ThirdGen.org!
Welcome to ThirdGen.org.
You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join the ThirdGen.org community today!
I have a check engine light that comes and goes. I got this trouble code: 29 EAS Electrical Fault. I have a 94' Camaro Lt1 in my 91' firebird. What does this code mean?
My haynes manual says AIR pump too, but the Snap-on scanner tells me it's an "EAS Electrical Fault." What is an EAS, and why is it faulting? I've been having problems with an over rich condition, could this be the cause? I'm confused about the discrepancy between the book and the scanner.
BTW, I took the AIR pump and associated stuff off, and capped the fittings on the headers. This should not throw a code. My buddy has a '94 LT1 Caprice and has had the AIR pump disconnected for years with no codes. Also, the CEL comes and goes, seemingly at random. The AIR pump only runs on LT1s at startup till the Cats are hot enough to work effectivly. It wasnt overly effective. It was so non-effective that '95 and later LT1s have a TSB for AIR pump disabling.
Last edited by Coach Hawk; 02-18-2006 at 08:27 PM.
So, I've learned that EAS stands for Electronic Air Secondary circuit, and is an AIR pump code as you said Firebat. But, the AIR system is long gone on the '94 Caprice with no code, so why am I getting one here?
Thanks for the info. I got it figured out to my satisfaction. With just the plug unplugged but with the relay in place will generally not code at least on OBD1. If the relay is dead or you removed it that could be why it is coding here. When we did the swap, we removed all the AIR pump wiring including the relay.
