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Any updates to this i am having the same issue with spark source at idle changing from 9 to 1

I am in the process of dialing it in. its crazy when i put it in D the idle is really good. this is it while idling in park everyone ofthose dips is spark source changing to 1

Spark fluctuating at idle my Min is -1.25 Max 23.00 Avg. 11.00 Every time the idle drops it switches to spark source 1 and spark jumps to 22.00. So something is either causing it to Drop and spark is making up for it or something else going on

I am chasing a up and down idle issue only in park when I put it in drive the issue goes away. Using SCT in closed loop to data log Spark Source and while idling, with the car In park it changes from 9 to 1. When this change happens is when the car idle up and down erratically. My MAF...

Is this what im looking for?

Thanks for the help it ended up being the Bosch O2's i switched to NTK and now STFT and LAMBDA on my gauge are in sync. Reading your fuel write up i converted to Return and kept the FRPS. Using SCT i cant find the switch to shut off injector compensation, in your write up you call it EFRS...

FYI my ECU strategy is CVAF1 So these will be the new values? breakpoint .0000241/2.5052=.00000959 Hi slope- .00833 Lo slope- .0281000/2.5052=.0112 I didn’t see it in your write up so gonna ask to be sure. Does the Minimum pulse Width also get scaled by 2.5052

so for Deka 80 blue tops do I scale 30# per hour or 75.157# per hour

Ok I read your write up and I see in big red letters that Hi slope is single most important scalar. That being said on SCT the values are # per second. So according to your injector data hi slope for 80lb blue tip Deka is 75.157. So do I convert and use the 75.157 or like you previously...

I changed the Bosch 17025 sensor with a known good one and recalibrated it. Is my injector data wrong here breakpoint— .0000241 Hi slope- .0208000 Lo slope- .0281000 Minimum pulse- .0005980

I am tuning my single turbo 2v with SCT PRP. when doing a in park rev log 1500,2000,2500,3000,3500,4000 rpm. I am in closed loop the STFT are within 3% and no matter what RPM the AFR is reading lean. While idling the Trims are perfect and AFR is around 17.2. If it was a air leak before the O2...

Thanks I'm not gonna adjust fuel only use the meth for added timing according to ACT. Will be running rich while spraying which is ok with me. Just cant seem to find ACT Spark adder table CVAF1 is my strategy.

I am not going to change the fuel tables once i am tuned for no meth. Gonna use the meth to add timing Only and will be rich when spraying. I do have the innovate SCG-1 with similar fail safe as the AEM. Cant seem to find ACT Spark adder table in SCT Advantage and i have calibrator status

Im installing a snow progressive meth kit on 99 built 2v with a single 7875 running pump gas twin 340lph 10an feed split to 8an and 8an return . I have PRP SCT Advantage with calibrator access. What would have to be done in the tune to only add timing according to ACT. Nozzle is located after...

Once I convert to return if I get a CEL I will take you up on that offer Thanks

Yes correct was driving and typing CVAF1CZ

CVAFC1Z Thanks by the way it’s a 99 mustang if that matters

Ok thanks can’t seem to find the 1234 1233 switch anywhere

I can’t find the switches in SCT PRP to shit off the P1234 and P1233 codes for when you convert to a return setup. Someone mentioned that they possibly eliminated it after Environmental takeover. Anyway around this. I still have the switch for P1000 code. Or maybe I’m just not looking in the...

Thanks finally found them..

Where would I find the P1233 and P1234 Code switch to stop the error code when converting to return. I currently have SCT PRP. I see the P1000 switch only under MISC—SCALAR

Am I missing something where the H@&L are the value files. I have SCT Pro Racer purchased from LasotaRacing and can not for the life of me find the value files. Where can I download them. LaSota originally did the mailmorder tune for me with a returnless setup. I’m thinking about going to a...

Gonna drop the tank and change the pumps. After reading up apparently I got wrong pumps in. AEM are not for returnless set ups. I just ordered Quantum 340lph pumps that work for PWM.

Funny thing is it only drops pressure while driving. If I am in park and rev it to 5000rpm it is fine