Check Engine Light With F-con
Originally Posted by Sam@GTM
This did not just happen over night 
I believe I've spent over 40 hours chasing this issue. a lot of it is really to utilize what the F Con as engine management can do. If you can make the ECU stay in open loop mode, the ECU will never self check it self and set any codes.
So to answer your questions. A combination of tunning and flashing the ECU (GTM Spec Flash). Something to share, we have some cars getting tested at a referee smog station and the car DID pass the smog inspection on the F Con.
This is by no means an easy task and is VERY time consuming, So I can see why most tuners would not do it.
sam
I believe I've spent over 40 hours chasing this issue. a lot of it is really to utilize what the F Con as engine management can do. If you can make the ECU stay in open loop mode, the ECU will never self check it self and set any codes.So to answer your questions. A combination of tunning and flashing the ECU (GTM Spec Flash). Something to share, we have some cars getting tested at a referee smog station and the car DID pass the smog inspection on the F Con.
This is by no means an easy task and is VERY time consuming, So I can see why most tuners would not do it.
sam
Last edited by G3po; Mar 3, 2007 at 07:53 PM.
Originally Posted by accordfreak
so the cobb turns the cel off completely for all codes? If so, what if there's a real problem that comes up? Would it be possible to just turn off that one code that goes off all the time instead of all of them?
What we are talking about has nothing to do with cobb at all. We are not disabling the physical cel function of the factory ecu. If there is a problem the CEL will turn on. What we are doing is tuning the car as close to OEM as possible and fooling the factory ecu to stay in open loop as long as possible so it does not trigger a CEL.
sam
Originally Posted by G3po
I'm curious, have the cars tested at the referee been stock cams, bore and stroke and NA? I wonder if ,for example on a 4.2L (ie. 10:1 SCR) NA + JWT S1 cams, ~440cc injectors scaled by Fcon , if it could pass? And of course OEM CATs in place.
sam
Originally Posted by Sam@GTM
With the NA 4.2L strokerr, mild cams, and 440cc injectors, with the fcon we are able to make the vehicle pass CA emmisions standards, I am very confident since I was a smog/driveability technician for over 8 years.
sam
sam
Originally Posted by G3po
Thanx. If it were the same setup but with 9:1 SCR and 650cc, do you think it could be made to pass? For example for use with Vortech?
Sam
Originally Posted by CESAROTORRES
Hello every one,
Please do not tell me that after we spent 3,000++++ on FCON pro and other parts, I will have to live with these annoyances
Cesar
Please do not tell me that after we spent 3,000++++ on FCON pro and other parts, I will have to live with these annoyances
Cesar
Yes, you did........... I was just at Uprev, and after consulting with them.. Im going with their solution.. They can tune the ecu..... So no piggy back for me......... Thank god!! Ill keep ya posted.. Ill be selling the utec!
No Piggy Back!
Originally Posted by jonb7007
Yes, you did........... I was just at Uprev, and after consulting with them.. Im going with their solution.. They can tune the ecu..... So no piggy back for me......... Thank god!! Ill keep ya posted.. Ill be selling the utec!
Thx
Cesar
Originally Posted by CESAROTORRES
Do you mean only the OEM ECU?
Thx
Cesar
Thx
Cesar
Exactly.. Ill let you know how it turns out first..... Uprev can save as much as 5 maps on the factory ECU.. Its basically the best way to go.... IMO..
Originally Posted by jonb7007
Exactly.. Ill let you know how it turns out first..... Uprev can save as much as 5 maps on the factory ECU.. Its basically the best way to go.... IMO..
Originally Posted by Zivman
The resolution for something like the FCON is much better for a FI application, not to mention eliminating the maf. If our ECU could see boost, I would agree that manipulation of the factory ECU would probably be best. For this application, the control and resolution the Fcon has puts it heads above the factory ECU when you add boost into the equation
Originally Posted by BrianLG35C
Do you still have CELs?
I know it is less than Ideal, but the CEL means absolutely nothing and I have grown to ignore it
Originally Posted by Zivman
I have CEL with my setup. I get 2 o2 sensor codes related code.
I know it is less than Ideal, but the CEL means absolutely nothing and I have grown to ignore it
I know it is less than Ideal, but the CEL means absolutely nothing and I have grown to ignore it
Ok so after having the FCON for over 1 year and my check engine light on it's now turned off. It has turned back on, but then other times I'll start the car and it's off. I have not made any changes on the car. Weird!
Does the check engine light burn out if it stays on for a long time?
Does the check engine light burn out if it stays on for a long time?
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Joined: Oct 2005
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From: Americus,Ga (Work) from ATL
Gman2004, i have a problem with my check engine light going off and then on and I am still NA. Hopefully when I get my FCON (I will be going FI down the road) install in Dec. it will stop, but if not it's ok.
Matt
Matt
yeah I learned to live with my light. In fact I've owned my car for 3 years now and my light turned on when I switched my exhaust and added tp's which was about 1 month after I bought the car. It was just weird that after being lit for a year straight it decides to shut off.
I swear I get these problems after the fact, anyways I get a code 1168 bank 2 error. So are you guys saying replacing the o2 will not fix this? You think there might be a slight chance the sensor is burnt out? I just replaced pulleys on my car and it was working ok but then a few days after this code came up. I cleared it drove around no code, then next day cruising around CEL. When this light comes on it feels like my car goes slower but I may be wrong.
Last edited by G35cTT; May 16, 2007 at 03:21 PM.
Originally Posted by G35cTT
I swear I get these problems after the fact, anyways I get a code 1168 bank 2 error. So are you guys saying replacing the o2 will not fix this? You think there might be a slight chance the sensor is burnt out? I just replaced pulleys on my car and it was working ok but then a few days after this code came up. I cleared it drove around no code, then next day cruising around CEL. When this light comes on it feels like my car goes slower but I may be wrong.