© 2025 DRIVEN LIFESTYLE. All rights reserved.
This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.
This is what Jevs posted about that... With the by pass valve thermo ecu set at 0.5V I dont have any SDL light and by pass valve seems to open at...
Yes thanks Bob, info on Fchat has been helpful. Now I just have to seal and fixed them as final! @Loser I still have my Mass Air Flow code...
Yes probably! I changed my cat for test pipe and SDL goes ON solid again after less than a kilo-meter. The link that Dave just gave show...
I put a circuit to fake them! I was waiting for your parts but I realized that i would dont need the SDL system anymore!
@Taz, I completely understand your thinking but the SDL system is only there to avoid over heat due of a bad catalyser, for everything else o2...
Yes thanks Bob! I was already in fact of that! So finally, I did 3 circuit with potentiometer to replace all the system and now problem is solved!
So, I removed primary cat on each side and they "looked good". I Installed test pipe instead of cat and still get solid SDL for both side after...
Good to know! I'll inspect them ans see if I find something wrong.
I was out of town for business and just came back today. Dave fromt STICKY sent me thermo ECU to test and i'm also supposed to get my test pipe...
Exact, I get no code on bypass but few day's before my bypass valve stocked open, even at the idle and now my bypass is stocked close. (Didn't...
I tested the resitance on TC to see if it was short but Get .8 what is supposed to be normal on both. Now I think i will remove them and test...
Yeah of course they are plugged! :) Thanks again Dave! I'll give a try!
Thanks bob! Just to be sure SDECUs are the "thermo ECU", (2 pin connector to thermo and 4pin connector with only 3 used to ECU) im right? If yes...
Thanks a lot Dave! I'll try to test both thermocouple tomorrow also with a multi-meter. I dont think both can goes wrong in the same time but...
Honestly, I think a read mostly every tread about SDL but if you find the one that you are talking about please copy link here for me. I...
Wow thanks, really appreciate. Email sent!
Both, without SDL at idle and with SDL Solid at idle... always the same temperature around 500F.
I was thinking the same but i get 500F with infrared gun when SDL is ON.
Already done, temperature was about 500-550 F even with the SDL Solid and as I say SDL never goes flashing they alway went to SOLID directly.
Smell good at idle. Exact I don't have issue when car is cold and even if car get warm and stay at idle. The only time that the SDL comes up...