This is a discussion on Need Help! within the External Engine forums, part of the LSx Technical Help Section category; Ok guys I put some headers on my 98 Trans am, and now sometimes when I try to start my ...
12-27-2009, 08:33 PM #1
Ok guys I put some headers on my 98 Trans am, and now sometimes when I try to start my car it won't and I smell gas. I am pretty sure that its flooded, if I pull the fuel pump relay and crank it over it will start once it starts i put the relay back in and its fine. any info will help Thanx
12-28-2009, 06:55 AM #2
did you do a tune when you put them on? with out a tune they make are cars run rich. also what plugs are you running? you dont want stock plugs go with some ngk tr55's or tr6's.
12-28-2009, 11:48 AM #3
I am running tr55's and I am getting my retune soon, the code that its throwing is the Ho2s. Thanks
12-29-2009, 12:07 PM #4
Now when I drive my car after sitting at a stop light then I try to go it has no power and fells like its flooded, after bout 5 seconds it opens up and goes what could this be. Had auto zone scan it and said that is a temp sensor switch and Ho2s.
12-30-2009, 07:03 AM #5
i think it's in the tune. did you hook up the o2's to the frount set or the back you have to use the frount set of wires. look up a member named frost and see what he thinks.
12-30-2009, 08:37 AM #6
- Join Date
- Feb 2009
- Ugy Lower Corner of AL
Navy Blue Metallic
- 98 T/A w/a little mods...
Also, Have you changed your fuel pump in the last 11 yrs? It may be starting to go if it is the OEM.
Mine's a 98' also with LTs and ORY and have had no issues, been running without new tune since Aug (not a DD). When I get my tax check I'll be getting my tune from Frost.
12-30-2009, 10:41 AM #7
Ok will get ahold of frost and thanks guys.
12-30-2009, 10:13 PM #8
Not enough here to do anything but speculate... an air leak in the exhaust before or near the O2s, bad O2s, bad extensions, etc.
01-02-2010, 07:34 PM #9
Think maybe its just to lean.
01-02-2010, 10:49 PM #10
01-03-2010, 09:14 AM #11
Well I parked it bout 4 days ago until I can get someone to look at it
01-03-2010, 09:15 AM #12
thats good better safe the sorry.
01-03-2010, 09:24 AM #13
Thats what I was thinkin
01-03-2010, 01:07 PM #14
01-03-2010, 05:10 PM #15
- Join Date
- Aug 2005
- 2002 Z06
Yeah this is deffinetly an issue with an air leak or bad/ bad connection to O/2 sensors.
Installing LT's on a stock engine with stock plugs is not going to magically make it not run right unless one of the above has happened. A tune will make it run better/right but it should run!
01-03-2010, 10:36 PM #16
I will check for leaks and the o2's.
01-04-2010, 01:47 AM #17
what extensions did you use for the O2's? What were the actual codes that it threw?
01-04-2010, 08:45 AM #18
The code was Ho2s and the extensions from jeggs.
01-05-2010, 01:23 PM #19
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