ECMlink Car wont go into closed loop

[jakk220]

Just got done with a build on my engine and noticed on the first start up that im stuck in openloop. This is the first time I've ever used ecmlink and not sure of there's a setting or something that I have to change or a value to set. O2 sensor was working before rebuild so I doubt that is it. Any ideas? I don't have a log with me right now but I could get one eventually.

 

[007jimmy]

Just got done with a build on my engine and noticed on the first start up that im stuck in openloop. This is the first time I've ever used ecmlink and not sure of there's a setting or something that I have to change or a value to set. O2 sensor was working before rebuild so I doubt that is it. Any ideas? I don't have a log with me right now but I could get one eventually.

On first start up we have fuel enrichment which is needed to keep the car running while cold. When your car warms up to operating temps then the o2 will start to cycle. If it doesn't then its probably bad.

 

[viridionplague]

your going to be stuck in open loop untill the car is up to full temp.

fueltrimupdatepoints [ECMTuning - wiki]

 

[jakk220]

That's the thing though, I did take it up to full op temp. And when I held the rpms at like 2k I could see my narrowband start to cycle. Just at idle its not moving.

 

[JayB12]

My friend had a similar issue and we weren't able to figure it out (but we never changed the o2 sensor). But we switched to NarrowBand o2 Sim with the wideband and it started to cycle and keep a steady ~14.7

 

[H@xtGSX]

Makes me think the front O2 is on the way to car part heaven... The dumpster.

 

[jakk220]

Yeah it wouldn't hurt to try to replace it. I guess maybe I should have mentioned that im getting a really weird idle too. Its bouncing around like 600-1000. Almost seems like surge because I have Ecm link target idle at 1000. I thought that might have something to do with the 272 cams I put in but now I might be thinking differently.

Ill post up a log tomorrow if that helps at all.

 

[deviousgst]

sorry for bringing this back up, but did you ever figure out what was your problem?
im having same problem, i already tried 3 different o2 sensors and it doesnt cycle, only cycles from .04 thru .06 unless i give it throttle and jumps up to .85 and back to .04..idk what else can be wrong.