Thread: Injector help/Look at my tune

Have you adj your fuel injector tables at all? You seem to be adding more than my 42's. Have you looked up any 60# injector tables then adj your flow rates to make up for the change your car has now? I haven't done any adj for 60# injectors but I know several on here have and they probably have some tables for you to plug in and make it a bit better. I know Reptile runs 60# injectors. BillBoost might have tables for you as well. That's who I got my 42# injector tables from and since I made those adj things have been alot better with my fuel econ as well.

Flow vs KPA then Offset vs volts needs adj most likely.

What's your Base AFR vs ECT table look like. That's where you set your AFR.

Are you on HP Tuners forum at all? HP Tuners Bulletin Board

If not register there are lot of helpful folks on there too! I've learned alot on there.

^ is correct. you can not just add fuel to the MAF and get it to be rich or leaner. as the trims will just put things back the way they were. you need to command more or less fuel.

Originally Posted by blackgrandprix

ok AFR vs ECT is at 11.6-11.7 and Offset vs volts im lost there lol

Look under engine-fuel-general
You need to what was suggested in earlier post look up all the tables and apply them into your tune and then recalibrate your maf table

So basically you put in your injectors and just hoped they worked and you would be ok?!?! Ya... You need to adj your pcm to command less fuel. Those 60# ers put out way more than your stockers. You need to go find the tables that need applied like i mentioned above. Then go drive your car for 15-25 min while scanning and adj your maf. Your fuel trims are probably way the f off right now. Also why are you so lean on your AFR vs ECT. That's not gonna make one hoot of diff until you get the right injector tables applied. IE under Flow vs KPA then Offset vs volts.

Go look under engine then fuel my friend. Or what brand of 60# injectors do you have. Maybe I can do some googling for you and try to find the tables. Have you made an acct on HP Tuners forum yet or even tried to find the tables for your injectors?

You need to read some more before you do **** like this.

Originally Posted by Phil99gp

Don't touch your stock MAF table. You will likely do more harm than good.

WHAT???

Put in the 60LB IFR table, and then use the wideband to tune the MAF. This is how i have done every 3800, and i get the AFR spot on

LOL

Guess the Professionals missed this then
How to tune in your fuel trims with HPTuners | ZZP News

http://www.trafficjams.ca/Performanc...cs/MAFTune.htm

http://www.turbov6camaro.com/maf.htm

http://www.fullthrottlev6.com/forums...m_garys_tuning

In our test case, the Mass Air Flow sensor is causing the rich condition, denoted by all of the negative LTFT's. We already KNOW FOR SURE that the VE table is correct, after all it is the backup to the MAF. What we need to do now is re-calibrate the MAF table using these values. Lets take for example cell number 3200 X .8 which has a value of 17. In our scans in SD Mode we have a value of -1. What is the difference in %? Good question! There is no equation that will accurately calculate it. We know that this vehicle is running rich. We know that by reducing the MAF table (called scaling it) we will cause the MAF to be Calibrated to the right values. The trick is to discover where the MAF curve needs to be set at. This is a painful process, but there is currently no other way. It is very obvious that we are running rich in this example, by a pretty steady amount right? Well, lets look at the MAF table breakdown, and decide what we need to do.

Our cars dont use VE like other PCM/ECM's

Originally Posted by Phil99gp

Every professional in the business uses a stock MAF table for your specific MAF sensor.
It's an interesting phenomenon that people with basically stock setups tune their MAF curves.
As long as the injector flow rate is correct there will be no need to tune the MAF.

Are you trolling from clubgp.?

Lol .....no you use a stock maf table as a starting point sure but the stock maf table is far from being accurate for each car and its upgrades. I can't think of why you wouldn't want to use all tools available to you to accurately tune your vehicle.

Originally Posted by 2003 SSEi

Our cars dont use VE like other PCM/ECM's

Can you explain that? last time i checked we use VE and should always be the first part of your tuning before tuning your MAF table.

Originally Posted by 91parkave

Can you explain that? last time i checked we use VE and should always be the first part of your tuning before tuning your MAF table.

I should say SOME of the 3800's dont use the VE. The Other PCM's like your GXP do use it

Originally Posted by 2003 SSEi

I should say SOME of the 3800's dont use the VE. The Other PCM's like your GXP do use it

You're referring to "virtual" ve? I only ask case I've never seen a 3800 file without and yea I'm tracking for the v8 05-06 but 07 and later use the virtual ve deal too.

Originally Posted by Phil99gp

You sound mad at the guy... And you're giving him poor info.
Blackgp, all you need is to get your IFR (injector flow rate) right then put your other fueling tables back to stock and you'll be all set to tune from there. Don't touch your stock MAF table. You will likely do more harm than good.

Not mad, just saying you gotta change stuff in your pcm to run bigger injectors. It just sounds like he put them in and ran with it then wondered why he was rich. I tune my MAF as do others. If you want to leave yours stock than that is your choice. I didn't think that I gave him any false or poor info.

How to tune 60lb injectors - 56k = ZZzzzzz...
BTW Tue your maf its more accurate of course only after you get your injector data right