can you give more details, or post a log. is your engine stock
Type: Posts; User: Omunoz
can you give more details, or post a log. is your engine stock
this issue can be a combination of problems, i had this happen to a few jeeps, it can be related to the iac sensor not resetting to the proper steps ,if you change the values of the map it may take...
that is normal closed loop values on this engine, i seen similar values for the jeep 4.0, at those rpm you don't want the 02 sensor trying to control the fuel to stoich
on the few 5.9 and 5.2 i done stock fuel at WOT is around 10 for AFR. even 4.0 are very rich at WOT
i end up with 260 in the map characteristics with gm 2bar map =58kpa reading, this will differ depending with the type of sensor you use
try spark table tune from 5.9 grand cherokee , also is normal for this engines to be around 10.1 AFR at WOT,
there is no VE table, you would use egr off to make changes to fuel, go to edit and choose advance to see the rest of the options . now for the vcm reading high kpa ,you probably need to reconfigure...
try setting your CL Disable Rpm lower around 2k rpm and go from there, if you run ss controller, disconnect your battery every time you make changes, FYI the oem computer is going to relearn every...
post vcm log and tune file
you should not have any issues with the current cam
there is enough to get a JTEC running on this forum , you just need to read more. if you want more help, post you file and VCM logs
you just need to have the radio off , your flashing might fail if you don't.
i just did a GC 5.9 with big cam bored 0.30 ford blue top injectors, I had to remove over 30%on the first 3 rows, and around 10 % at WOT
[QUOTE=b.rudy;650475]Heres the screen shot of my AFR histogram math parameters. Does it look right?
109885
[ATTACH=CONFIG]109886[/ATTACH
let us know if you get the for formula to work , i know...
a reason to disable 02 sensor is to Run open loop or tune in open loop
go engine , fuel cut off and you should see rpm cut off on the left hand corner
yes, set altitude correction table to all 1, and change min counts to 50 under engine diag.
it is supported, search the forum you would find some stock JTEC tunes
16009886, still working
theres no ve table,you would scale your fuel under fuel base egr off, also for better tunning get injectors with good flow data so you can set you batt offset voltage, pulse width
i have mine, min count to 50 and thats been working fine so far
it sounds like a bad iac valve to me
you have your closed loop disable at 5300 try 2000 rpm
[QUOTE=CVY Automotive;621383]Hello, I am using MPVI 2 and i have 2003 Jeep Grandcherokee and my O2 sensors turning on my Check engine light. It disturbing me and i tried to off my car's O2 sensors....
i look at your file,you need to take fuel out, it looks like you added fuel to some of the idle and cruise portion of the fuel map. if you have 29# injectors you need to take out similar fuel from...