Topic: who's good at reading data logs? I've got an idling one... (Read 748 times)

Code Blue · « **on:** January 27, 2010, 05:08:16 PM »

trying to see if my sensors are reading ok?? anything look off, or anything additional I need to log?? thanks !!

http://spreadsheets.google.com/pub?key=tBhBZXyfj1ysXpZrd_QI1Tg&output=html

Code Blue · « **Reply #1 on:** February 02, 2010, 08:09:15 AM »

nobody ?

phong · « **Reply #2 on:** February 02, 2010, 08:22:04 AM »

The fuel trims that you logged are reasonable. I am no fine tuning guru though, most of my knowledge has been lost due to lack of use. Your IAM is a little low, did you recently reset the ECU or is this after some driving?

Code Blue · « **Reply #3 on:** February 02, 2010, 08:24:06 AM »

this was actually just setting everything up, I didn't drive at all, just pulled it out to the road and started logging the idle

phong · « **Reply #4 on:** February 02, 2010, 08:33:34 AM »

And to put this another way, seeing how steady your idle log is just made it a lot easier for me to justify replacing my O2 sensor. I don't know if I have ever seen a log that had 0 trims constantly. I'm sure you could improve w/injector scaling and maybe maf scaling but where you are now is reasonable. Again, its been a while since I did much logging and reading over at Romraider so my opinion is far from that of an expert.

Your IAM is fine for now, so long as it comes up to 16 after a run through the gears a couple of times.

idipskoalmint · « **Reply #5 on:** February 02, 2010, 08:54:06 AM »

Take a Learning View screenshot and post it

Learning View tool:
http://www.romraider.com/forum/topic2772.html

stylesrex · « **Reply #6 on:** February 02, 2010, 09:56:37 AM »

your idle is high and your fuel trims could use some work. +/- 5% correction is reasonable and it looks like it creeps past that later in the log.

IAM is a percentage of total advance that will be added to base timing. IAM can be viewed as a meausure of how "happy" the ecu is. if IAM is 100% then all TA will be used.

if you need anything else id be glad to help

Code Blue · « **Reply #7 on:** February 02, 2010, 12:44:17 PM »

seth st dennis street tuned the car, and it was the best educated guess that the car is cammed, and the bottom end at least built. at the normal idle range it would shake pretty violently, and the compression test turned up ok, plus there are cosworth head gaskets and you can see some machining done to the ports on the head... thats basically why the idle is as high as it is, it was set to 1000 (even though its STILL lumpy as hell)

Code Blue · « **Reply #8 on:** February 02, 2010, 12:49:20 PM »

Quote from: idipskoalmint on February 02, 2010, 08:54:06 AM

Take a Learning View screenshot and post it

Learning View tool:
http://www.romraider.com/forum/topic2772.html

do I need to start the car, or just turn the ignition to on, read the parameters, take a screenshot and boom, done?

idipskoalmint · « **Reply #9 on:** February 02, 2010, 01:10:08 PM »

Quote from: Code Blue on February 02, 2010, 12:49:20 PM

do I need to start the car, or just turn the ignition to on, read the parameters, take a screenshot and boom, done?

Connect the tactrix as if you were going to log (green connectors should not be connected)

Turn ignition to "On"

Select appropriate COM port

Hit "Connect"

Code Blue · « **Reply #10 on:** February 02, 2010, 01:13:01 PM »

Code Blue · « **Reply #11 on:** February 02, 2010, 01:27:07 PM »

i forgot to add that the exhaust at idle smells very rich, and lately Ive had to idle for extended periods of time, and my mpg has gone from 22mpg to 16.5mph !!!!!

idipskoalmint · « **Reply #12 on:** February 02, 2010, 02:09:39 PM »

How long since your last ECU reflash / reset?

Code Blue · « **Reply #13 on:** February 02, 2010, 02:23:33 PM »

It's been awhile actually

idipskoalmint · « **Reply #14 on:** February 02, 2010, 04:42:36 PM »

Quote from: Code Blue on February 02, 2010, 02:23:33 PM

It's been awhile actually

We have to get your IAM up to 16. Since this isn't a fresh reflash, something's going on.

What mods do you have?

Code Blue · « **Reply #15 on:** February 02, 2010, 05:36:01 PM »

Unknown engine internals or cams other than that I've just got a gms inlet, gms radiator, and some silicone hoses. I've brought it back to stock as much as I could

Code Blue · « **Reply #16 on:** February 02, 2010, 08:44:54 PM »

I forgot to mention the issues I have with it and planned remedies.

uppipe leak - have erz up pipe
downpipe - have erz downpipe soon
wbo2 - have gauge setup, just waiting for downpipe

I believe my front 02 sensor MAY be faulty as well, I'm not sure..

anyways I drove around for a bit today after class, parked it, and took this learning view snapshot...

idipskoalmint · « **Reply #17 on:** February 02, 2010, 10:07:55 PM »

Quote from: Code Blue on February 02, 2010, 08:44:54 PM

anyways I drove around for a bit today after class, parked it, and took this learning view snapshot...

That looks a LOT better.

Your A-D fuel trims are all within 5% (the "acceptable" range). A little tweaking may help, but nothing of major concern, and not without a wideband.

Your FLKC table looks better as well. The 2600-3400/.7-.9 cell still is pulling a bit of timing.

Code Blue · « **Reply #18 on:** February 03, 2010, 01:32:04 AM »

since this is obviously not a stock map, I wonder what it would do with a stock map loaded up...

also, I just got the P1507 code, so tomorrow I'm going to swap out the IACV, clean the MAF sensor, replace the fuel & air filter, and possibly do an oil change while I'm at it

Code Blue · « **Reply #19 on:** February 03, 2010, 02:25:04 AM »

Code Blue · « **Reply #20 on:** February 03, 2010, 02:26:53 AM »

Another question.. what parameters would I want to log to see if my o2 sensors are still functioning well, along with the maf, etc

idipskoalmint · « **Reply #21 on:** February 03, 2010, 07:25:45 AM »

Quote from: Code Blue on February 03, 2010, 02:26:53 AM

Another question.. what parameters would I want to log to see if my o2 sensors are still functioning well, along with the maf, etc

http://www.romraider.com/forum/topic5384.html

Here's a pretty useful "logging" thread

Code Blue · « **Reply #22 on:** February 03, 2010, 08:45:00 PM »

Well today I did a few things:

Replaced IACV
Cleaned MAF w/ MAF cleaner
Replaced Air Filter
Replaced Fuel Filter

also did an ecu reset to clear the IACV check engine light. none of these things fixed it entirely, although the exhaust doesnt smell as rich as it used to.

I also backed up the ecu map that was on there and also loaded a stock 2002 ecu map I found from one of the tuning resources. I've attached a copy of the ECU map that was loaded onto the car.

The idle seems to fluctuate more, but it still seems to be 950-1000 rpm's, so I'm starting to believe I have a vacuum leak somewhere, I plan on testing it out shortly.

Other things I noticed:

if I turn either the heater or the lights on the rpm's drop to 800-920 and dont go any higher.. what could be causing this? overtightened or overly loose belts?

My TGV's.... I noticed awhile ago that they dont fluctuate and arent even close to being even... the L stays at 0.34 and the R stays at 2.14 could this be making one side restricted of air?? I definitely plan on doing the TGV delete

Code Blue · « **Reply #23 on:** February 03, 2010, 08:49:41 PM »

forgot the link to the map

http://docs.google.com/leaf?id=0B4gm795J3BImNGNkNmNiNzYtYzAwNS00OTI5LWE0NzItZjhmODA0N2ViZTA2&hl=en

Author Topic: who's good at reading data logs? I've got an idling one... (Read 748 times)