Yeah been driving it with a light foot and I realize it's not the best vehicle for getting fuel mileage to start with. Would just like to see if I can squeeze a couple more mpg's out of it. Don't...
Type: Posts; User: Confused1
Yeah been driving it with a light foot and I realize it's not the best vehicle for getting fuel mileage to start with. Would just like to see if I can squeeze a couple more mpg's out of it. Don't...
Just got a 2001 Tahoe that is 100% stock. Looking to see if I can get a little better mpg. Was wandering if anyone can give me any info. about where to start and what changes I could make. I took a...
Maybe Santa has it.
I've been reading and gathering info also. Are you saying for step #2 to set all temps above 158* to 1.174 or just the map cells from 70 thru 100 KPA?
I decided to leave the raf table at its current values for now. Went ahead and unpluged the maf and applied the 1bar map OS and made the changes to the tables. Only part that I didn't change as...
Reset the injector offset back to stock and did another cold start in drive today. Again the car started up and idled but when its put in drive it started the hunting again. Watching the temp on the...
The injectors are the GTP # 24508208 (white in color). Will set the injector offset back to stock. See the list of mods in first post
I loaded the new file and took the car for a test drive. When I started it up the temps were below 150*. I put in drive and it hunted / surged a little until the temp got to 150 and then started to...
Russ, made all the changes as requested to the file. Started it up today to log the cold idle in drive. Started the car up and put in in drive and started the logging. It hunted around at first , but...
Thanks for the help Russ. I made the all the changes you shown to the raf, adaptive idle airflow, startup decay and changed the adaptive idle min. temp to 160*. I see in the screenshot you have the...
Here's a cold start log from today along with the current pcm file. Car started and idle on its own. Used the vcm controls to turn off the fans and let it idle up to about 195* +/-. Will take the...
I set the screw back to its original position. Then started over by turning the screw until the scanner dispayed 2%. The tps volts went from .55 up to .63. I took the tps and slotted the holes also...
Trying to get a heads and cam car to idle. Read the sticky on idle tuning and setup the stock file according to the sticky along with info from EC Tune. Also made changes for the injectors ,idle...
Will most likely do injector / pump and be done with it. Looking at the24508208 injector which are about 40 lb at 58 psi.
In my searching I came across the post with the discussion of transient...
Did some testing today with a mechanical fuel pressure gauge. At idle the pressure is around 58-60 psi. Then with the help of another person to the car for a short test run. Once I'm in 3rd gear (M6)...
Thanks for the help. Looks like its time for new injectors and walbo pump. After you asked about the fuel pressure I remembered that I have an Autometer 4590-0023-12 sensor in a box of spare parts....
Dang I'm all confused I was thinking 98-99 had the 28 lbs. Don't know about the fuel pressure. How do I go about logging this? Currently running stock pump. So need to get bigger injector and any...
Here's a new log I just did. Attach are the files and config file I used with the cell count set to 25 during this. Just normal driving and the wot pulls were done after getting into 3rd gear (M6)....
I'll go out shortly and make a new log. Then copy / paste the data by % and see what this does. What about the plot filter that I'm using. Should I remove it or not? I'll probably lower the cell...
The cam is a MS 3. I'll continue with dialing in the ve table above the 4000 rpm. I wouldn't be surprised if the values end up in the upper 120's in the 95 thru 100 kpa. Once I get the afr down to...
Yes it has stock 28 lb injectors. But just how much higher would be acceptable 120's or what ever it takes. Any suggestions on getting the ve dialed in quicker. Should I be using different plot...
I'm having some problems while tuning the ve table and seem to going in circles. I'm following the SD guide in the help file and "Cpig's guide. I have the wideband (LM-1) installed and calibrated and...
This could be some useful information
http://users.erols.com/srweiss/tableifc.htm
I finally found the GTP injector part#. Its a Bosch # 0280155868
Also what about this injector GM part #24508208 (AC/DELCO 2171389). What I've found is they are Rochester and for a ZO6 (Buick...
I went back and search through the thread and couldn't find a part#. Will try search more>
When using the spread sheet to generate the new injector flow. We use 40 lb for the injector rated...