Did you try setting the DTC to MIL off? Under engine diagnostics/DTC's. That worked for me on P0234 overboost.
Type: Posts; User: 98vortecSilverado
Did you try setting the DTC to MIL off? Under engine diagnostics/DTC's. That worked for me on P0234 overboost.
If you search and look at a picture of the 24x wheel you may understand better what you're working with. It's not a missing tooth configuration, it's more like two 24 tooth wheels side by side but...
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I forgot, but I actually had bought an ecm from lextech also. it looks like he gave me OS 12212156, which I don't think I was able to get rtt to work on ever. With that said I did find...
What OS are you using? I think I had told you in another thread that it doesn't work well to write a different OS to your ecm with hptuners. I may not have been very clear, depends on what you are...
You shouldn't try writing a tune from the repository. Different OS and whatever can cause problems. It also takes more credits than neccessary, what you want to do is license the file you pulled from...
Are you watching your main timing while driving? On mine (2006 LBZ) I had problems with high EGT and less than great fuel mileage until I got to watching timing on my edge monitor. It was running...
I can't look at your tune right now but that sounds right.
When I was missing the ground for injectors the scanner was showing 32ms or so for injector pulse width but they of course weren't doing...
Feels like I'm late to the party!
Glad to hear you got the lean tip in figured out. I had blamed it mostly on the LS9 injectors I was using, but obviously the intake was mostly to blame. I had...
O2 rich/lean vs airflow. I'm not sure how far you could get it to go, and I'm sure it would take a bit of trial and error, but I believe you could lean it out some. You should figure out which...
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If you put the value from 0 VAC in the tahoe tune into the 400 cell in the H3 tune, and the value from 80 VAC into the 480 cell (pressure delta increases with manifold vacuum) and...
Also if you are at all interested in tuning and or more mods later on, I would recommend a $160 wideband instead of a dyno tune. But thats just me I guess.
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Yeah I don't think I have anything that would be very close.
I would recommend setting up SD like I mentioned above and giving it a try. If it wants to surge and buck just select the entire...
if you get unplug of the MAF you will be in SD. (You should keep your IAT sensor)
Under Engine Diag/Airflow/Mass Air Flow Sensor If you set those 2 values at 9 and 10 it should fail the MAF...
Double check that your 12v switched inputs to the ecm are staying on while cranking, and also check ground to the coil packs. I was missing a ground to the main coil pack connector. I skipped right...
Ok actually got this figured out. One of my 12v switched ignition wires was not staying hot during cranking. Finally got it figured out when I noticed the "control module voltage" was going to 0...
Nicely explained by cobaltss.
Fullpower one thing you need to keep in mind is that the VE table is telling the ecm how much air is making it into the cylinder. So yes your values should increase...
With a 350 vortec 0411 swap the OS to use is the 02 chevy express van. It was one (or possibly the only) factory application of the 0411 ecm / V8 / distrubutor. I believe that would work for you...
Hptuners supports 98 and newer silverado 7.4 so you can tune your 99 ecm. If all you're after is disabling the DTC's for the emissions equipment you removed you should be fine using your "black box"...
Being 24x you could run a p59 (blue/green connector) that has a flex fuel OS, say from a 2006 silverado, lots of info for that in the genIII section.
2 bar will read 14-15 psi so that should work...
Do you have a wideband? If you are wanting to tune your VE table I wouldn't worry about the flat spot off idle.
Once you have your fueling matching commanded good chance it won't be a...
I believe I figured out the high idle. I had plugged an aprox. 3/4" hole in the top of the intake, and the plug got knocked out. So it had a massive vacuum leak. I'm guessing thats what caused the...
First of all I'm new to the Gen IV engines.
I picked up an iron block 11:1 408 (4.03 bore x 4.00 stroke) 58x shortblock, put L92 heads and a truck intake with 50lb flex fuel injectors and stuck it...
Should be able to. You would need to license the file thats on the pcm, and then you can write entire with his existing tune.
I don't have any experience running open loop SD in changing altitudes. I was under the impression it would be a fairly minor difference in oxygen level somewhat similar to a temperature/humidity...
I don't beleive you would want to chabge the whole table. An open loop SD tune is injecting fuel based on MAP/RPM. Your MAP tells you actual manifold pressure already so there's no need to lean out...