poor performance because service soon light
01-17-2007, 09:21 PM
#21
1st Gear Member
Join Date: Dec 2006
Location:
Posts: 63
RE: poor performance because service soon light
Take it to the track with the light on and then without it on, I bet you will runa hell of a lot better when the light is off.
I am speaking from experience, I had my o/r x-pipe with no mil eliminators and it run fine driving around doing my day to day crap. I took it to the track and it didn't have the usual kick in the pants even before I put the x-pipe on.
I THEN installed the mil eliminators and it run way better at the track. 6 tenths quicker!
So yes, SAFE MODE!
I am speaking from experience, I had my o/r x-pipe with no mil eliminators and it run fine driving around doing my day to day crap. I took it to the track and it didn't have the usual kick in the pants even before I put the x-pipe on.
I THEN installed the mil eliminators and it run way better at the track. 6 tenths quicker!
So yes, SAFE MODE!
01-17-2007, 09:30 PM
#22
2nd Gear Member
Join Date: Jul 2005
Location:
Posts: 382
RE: poor performance because service soon light
ORIGINAL: AJ97GT
Yeah, when I swapped out my midpipe my car started to run very rich. I couldn't see a whole lot of difference in performance, but I did notice my gas milage was down quite a bit. Once I put the MIL eliminators on and reset the computer it went back to normal.
Yeah, when I swapped out my midpipe my car started to run very rich. I couldn't see a whole lot of difference in performance, but I did notice my gas milage was down quite a bit. Once I put the MIL eliminators on and reset the computer it went back to normal.
01-18-2007, 10:56 AM
#24
2nd Gear Member
Join Date: Oct 2006
Location: Oak Harbor Wa
Posts: 159
RE: poor performance because service soon light
Ok, this has really been bugging me so i ask my buddy who is a Ford Mech. He has his degree in mechanics/went to the Ford school and is now going to the SVT school. so he should know a thing or 2. The back two plugs will make your light come on but have NO effect on the computer in an 04. Now he also siad there wasa change in the computer he could not remeber the year but it was the year the IAT changed, 01 he thought . Those years do have an effect with the MIL. It will make your car run lean/rich. He is going to try to find something on this today so maybe i can post it. After he told this to me i searched the furoms for posts like this and noticed that ppl with New Edges say there is no effect while ppl with 99/01 or below seem to say there is an effect more often. It will be interesting to see what my buddy finds on this.
01-18-2007, 11:11 AM
#25
4th Gear Member
Join Date: Oct 2006
Location: Kentucky
Posts: 1,460
RE: poor performance because service soon light
ORIGINAL: 2004GTRED
Ok, this has really been bugging me so i ask my buddy who is a Ford Mech. He has his degree in mechanics/went to the Ford school and is now going to the SVT school. so he should know a thing or 2. The back two plugs will make your light come on but have NO effect on the computer in an 04.
Ok, this has really been bugging me so i ask my buddy who is a Ford Mech. He has his degree in mechanics/went to the Ford school and is now going to the SVT school. so he should know a thing or 2. The back two plugs will make your light come on but have NO effect on the computer in an 04.
01-18-2007, 11:20 AM
#26
6th Gear Member
Join Date: May 2006
Location: Ohio
Posts: 6,448
RE: poor performance because service soon light
ORIGINAL: 8banger
Exactly!I'm(20+ plus years )ASE Master Certified,,L1 and L2 and drivabilty is my main job....The rear 02s do not affect A/F Ratio....The ONLY reason they are there,,is to monitor cat convertor efficincy....when the cats grow weak or bad ,,,the cel will comeon,,....
ORIGINAL: 2004GTRED
Ok, this has really been bugging me so i ask my buddy who is a Ford Mech. He has his degree in mechanics/went to the Ford school and is now going to the SVT school. so he should know a thing or 2. The back two plugs will make your light come on but have NO effect on the computer in an 04. Now he also siad there wasa change in the computer he could not remeber the year but it was the year the IAT changed, 01 he thought . Those years do have an effect with the MIL. It will make your car run lean/rich. He is going to try to find something on this today so maybe i can post it. After he told this to me i searched the furoms for posts like this and noticed that ppl with New Edges say there is no effect while ppl with 99/01 or below seem to say there is an effect more often. It will be interesting to see what my buddy finds on this.
Ok, this has really been bugging me so i ask my buddy who is a Ford Mech. He has his degree in mechanics/went to the Ford school and is now going to the SVT school. so he should know a thing or 2. The back two plugs will make your light come on but have NO effect on the computer in an 04. Now he also siad there wasa change in the computer he could not remeber the year but it was the year the IAT changed, 01 he thought . Those years do have an effect with the MIL. It will make your car run lean/rich. He is going to try to find something on this today so maybe i can post it. After he told this to me i searched the furoms for posts like this and noticed that ppl with New Edges say there is no effect while ppl with 99/01 or below seem to say there is an effect more often. It will be interesting to see what my buddy finds on this.
To put it simple that light means you will not pass an emmisions test.
01-18-2007, 11:22 AM
#27
5th Gear Member
Join Date: Sep 2006
Location: Raleigh, NC
Posts: 2,966
RE: poor performance because service soon light
ORIGINAL: BBond007
Maybe it's just the 96 and 97 that do that but when my CEL came on a few days after putting O/R x-pipe on, I had the same issue with it running rich. I had it idling in a small parking garage (waiting to take someone to the airport) and it was really obnoxious as far as the exhaust fumes. The gas mileage to the airport and back was noticeably bad…
ORIGINAL: AJ97GT
Yeah, when I swapped out my midpipe my car started to run very rich. I couldn't see a whole lot of difference in performance, but I did notice my gas milage was down quite a bit. Once I put the MIL eliminators on and reset the computer it went back to normal.
Yeah, when I swapped out my midpipe my car started to run very rich. I couldn't see a whole lot of difference in performance, but I did notice my gas milage was down quite a bit. Once I put the MIL eliminators on and reset the computer it went back to normal.
ORIGINAL: 8banger
Exactly!I'm(20+ plus years )ASE Master Certified,,L1 and L2 and drivabilty is my main job....The rear 02s do not affect A/F Ratio....The ONLY reason they are there,,is to monitor cat convertor efficincy....when the cats grow weak or bad ,,,the cel will comeon,,....
ORIGINAL: 2004GTRED
Ok, this has really been bugging me so i ask my buddy who is a Ford Mech. He has his degree in mechanics/went to the Ford school and is now going to the SVT school. so he should know a thing or 2. The back two plugs will make your light come on but have NO effect on the computer in an 04. Now he also siad there wasa change in the computer he could not remeber the year but it was the year the IAT changed, 01 he thought . Those years do have an effect with the MIL. It will make your car run lean/rich. He is going to try to find something on this today so maybe i can post it. After he told this to me i searched the furoms for posts like this and noticed that ppl with New Edges say there is no effect while ppl with 99/01 or below seem to say there is an effect more often. It will be interesting to see what my buddy finds on this.
Ok, this has really been bugging me so i ask my buddy who is a Ford Mech. He has his degree in mechanics/went to the Ford school and is now going to the SVT school. so he should know a thing or 2. The back two plugs will make your light come on but have NO effect on the computer in an 04. Now he also siad there wasa change in the computer he could not remeber the year but it was the year the IAT changed, 01 he thought . Those years do have an effect with the MIL. It will make your car run lean/rich. He is going to try to find something on this today so maybe i can post it. After he told this to me i searched the furoms for posts like this and noticed that ppl with New Edges say there is no effect while ppl with 99/01 or below seem to say there is an effect more often. It will be interesting to see what my buddy finds on this.
01-18-2007, 11:30 AM
#28
RE: poor performance because service soon light
When I put my or pipe on the code came and went as it pleased...with it on I got noticeably worse mileage than with it off, and I make the same trips monday through friday
