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2G Link front o2 reads .20

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rydnkd

Proven Member
54
1
Apr 11, 2014
Sunset, Utah
I have replaced the o2 multiple times with new denso ones. I have even bypassed the pigtails and just wired them directly. It's giving out the correct volts with a multimeter. But link is stating it can't go into closed loop and constantly reads .20 front o2. Ecu wires look good I just got the ecu back from thomas at ecmtuning last month. Anyone had a similar issue? It's possible I have it wired incorrectly. The o2 harness has 2black 1white 1blue. The stock has black.white.yellow.red.
Any help or guidance is appreciated, thanks.

Edit: So far my 3 questions have not been answered or even replied to. This newbie forum is extremely frustrating..
 
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Yeah.. I've spent countless hours on this I already have that thread favorited. The issue I think is with link. My question is has anyone had a similar issue. Like I said, the voltage reads correctly at the multimeter but not at link. Even with no o2 in link reads .2. Any ideas?
 
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I have ran into this issue before. the problem I found was with my tune in link. there are many factors the ecu reads to determine closed/open loop. I found a faulty engine temp sensor was causing my open loop which caused the front o2 to not cycle as it should. also check your fuel trims.
post a log and lets see if we can find a problem.
 
I emailed thomas my log and he said I had the narrowband simulation checked but it was faded so I couldn't see it. So someone had ran a wideband and never fixed the simulation. I will see if that works today.
 
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