new mtx l opinions on my log/tune log included

[jcarmichael]

hey everyone, so yesterday I installed my mtx-l wideband in my stock o2 location, before that I was running a stock o2. I believe my isc is going out, explaining the high idle at the end of the log at idle. can anyone give me an opinion on if my wideband seems to be operating correctly and any advice on my log which direction to go in would be great as well. as in a week or two I am switching over to speed density and want the switch to be some what easy.

thanks in advance heres a log and video from my phone of the wideband working.



Mtx l wideband operation - YouTube

 

[WES_393]

Seems to me that you need to adjust yout TPS. It's showing 2% at idle. Here's the video from ECM Tuning's website which includes TPS adjustment. The ISC looks fine as it's nearly in the middle of it's range of 0-60. 0 meaning it's completely closed and 60 being completely open so yours at 45 has plenty of room to adjust either way.

http://www.ecmtuning.com/demos/initialsetup.html

I can't comment on the wideband as I only have my AEM in the captured values.

 

[jcarmichael]

ic yea I did the tps adjust awhile back but I took my intake off over the weekend to put the fitting in for my map sensor for speed density. so when I put the cable back on might be in a different spot then before need to go through and do that adjustment as well. but I will change my tps adjust tomorrow. any other ideas? noticed my nb signal never went down to .2 always stayed at .8 the whole time. it should be making adjustments here and there I would think atleast, is .8 always giving more fuel or always taken fuel away?

 

[907dsm]

Are you not on the ecmlink forums? I'd highly recommend you contact Dave and or Thomas on getting an account over.

 

[jcarmichael]

yea of course I am on there, but getting a response on there isn't as likely as on here. I will probably post it on there as well now that you mention that.

 

[snowborder714]

First off, you have a knock sensor DTC that you should figure out pretty quickly.

Make sure to add the LC1 wideband sensor to your Displayed Values list. I have no idea if it's working properly since it's not there.

Post up an idle log after the car is warmed up.

 

[jcarmichael]

will do def, yea I noticed that as well had it unplugged over the weekend when the manifold was off of the car, got it plugged back in and I just replaced the knock sensor in october when I did my head gasket. I added it to my list of sensor I thought but not to my actual log I don't believe. I will look into it tomorrow when I do the tps adjust before work.

thanks again appreciate the help always

actually I am going to go do it really quick as I have to pull my car up either way and I wont have the chance to post the log up until tomorrow night if I wait to do it tomorrow morning.

here is the log its decently cold out and my thermostats a 180 fans are on always long story short the lines are shorted together until I can get a new radiator sensor. I am logging the sensor now but it stayed at 7 to 5 ratio and on my actual sensor in the car its reading 17.3 and varying a bit between that in high 16s: confused:

 

[snowborder714]

It seems to be stuck in open loop (noting that the Closed Loop value doesn't change - you can verify by capturing and displaying the Open Loop value). Look here on how to get it to go into closed loop.
fueltrimupdatepoints [ECMTuning - wiki]

You can play with the Coolant Offset value (in Dash tab) to get it to see a value >190°, which is hopefully the only thing keeping it from Closed Loop.

 

[jcarmichael]

awesome hopefully thats all it is, even today during the day when its like 56 outside im still only running 186 which I guess I should be happy about that, since over the summer before I switched radiators I was in the 216s and higher with defrost fully on. but I will make my coolant offset 15 and see if that fixes thing. also I will look over the open loop wiki you put up

ill change my coolant offset before I leave work and log on my way home to see if it makes any difference

I made my coolant offset 15 so it would register, my open loop was at 1 the whole drive and my closed loop was at 0 never wideband still staying at 7 to 5 ratio. however when I left work I noticed a slight puddle under my car so after my 30 min drive home I checked saw a leak, opened the hood while the car was still running and wouldn't you know it have gas squirting out. must not have got something seated right when I put my intake manifold back on saturday. could possibly be the cause of the knock sensor giving me a code here and there going to fix it and post up a new log soon.

It was leaking from my return line fitting on my fuel rail. deceided it was time to hook the afpr up finally. I removed the injector pack and mounted the afpr there, since there is no room on the firewall else where does anyone know if the resistor pack needs to be grounded to the firewall. Everything I read doesn't suggest it needs to be grounded but just making sure.

 

[snowborder714]

No, it doesn't need the body of it grounded.

 

[jcarmichael]

awesome it was running without it and everything I read suggested it didn't need to be. need to zip tie it up for another week until I delete it out completely