OK. My conversation with RRM went well and I want to start by thanking Rob and Gabe for being so helpful.

I bought my piggyback from a member of evom and hooked it up assuming the instructions he was nice enough to go pick up from RRM were the correct ones. Apparently there are two versions of the piggyback for the RA, and I got the old one but with new instructions. The tach signal is read differently than it is now, which is why the RPM never registered correctly on mine.

Gabe walked me through the software and we checked the wires (the fourth time for me) while I was on the phone. After all of this he put me on hold and pulled the instructions for the first version. He told me to switch the tach signal wire to read from the crankshaft positition sensor (pin 70 on the pinout/brown and green wire) and change the engine settings in the R4 software from 4cyl 4stroke to 2cyl 2stroke.

Everything is working fine and I am very pleased that I can now tune my piggyback properly. I am planning on the wideband stuff either around Christmas or early February and will be updating this thread and the maps thread.

+1 to Rob, Gabe, and RRM as a whole. Once again I have had a positive experience and gotten all the help I needed to get the job done properly. The support they show for their products is commendable, especially since this particular part wasn't even purchased by me from them.

Also, thanks to everyone that tried to help me out in this thread.

 

glad to hear you got it worked out. My tach was reading fine in the software but since you said you checked the wiring, all I could think is that it was faulty. Older version makes sense. What I don't get is changing the settings to 2 stroke. The tuner that did mine used four stroke which makes more sense and the tuning went fairly well. Is the two stroke setting just for your older version? What is the logic behind that?

 

Not the tach, the throttle position sensor, which is what AdamRA asked about.

 

Depends on the sensor used to get the rpm signal. Using the tach signal, you have it set to 4cyl, 4 stroke as it should be. Using the crank position sensor, you get a pulse every time the crank goes around, so you set the software for 2 cyl, 2 stroke. It doesn't change anything in the piggy, just in how the R4 software interprets the data it's getting and shows it to you on the screen.

I used to have to do the same thing in my Eclipse to get the SAFC to work right, otherwise the rpms read wrong.

 

It changes the way the map works in the car too. The settings are all stored in the map when you write it to the unit. If you use the CPS signal but don't change the settings so the RPM's read right you won't be using the whole map, that's the problem I was having with no RPM signal. The piggyback thought it was always below 500 rpms so those were the only map cells used. Gabe made it perfectly clear to write to the ECU each time you change the settings because you are telling the unit what to expect, not just the software.

 

I am starting to figure the software out some, and since I don't have the wideband equipment yet I am using the graphs from my previous dyno time.






I laid out a grid over it and figured out the afr at certain rpms(roughly of course) on the stock map and then did the same with the p1 auto map. I then put the three maps I have been using together in excel with the information I pulled from the graphs.


I then determined the likely cell values for each rpm so I knew what I should be changing. After I put one map on the piggy and ran another chart recording I saw that I was still going into the stock map alot. I copied values into those areas and came up with a conservative base map for my mods based on the stock ECU AFR readings.

 

nice work Dan. I'll try to help out with my map as soon as I can borrow a laptop

 

I ordered my zeitronix wideband(last piece of the puzzle) will keep you guys posted on how it goes....I'm anxious to get my car tuned properly with the RPW long tube headers.

 

Adam good work..I use innovative for tunning with xd16 gauge for every day use.

 

I was very close to getting innovate, but honestly it's a very expensive unit. The zeitronix is about $200 less for me.

 

I think I have the opposite problem. My rpms are reading 10000 at idle.

Having read this thread, I think I'll change the software to 2cyl/2stroke and see if it reads correctly. The instructions I got were the old ones, I'm tapped into the crank position sensor. If changing the setting doesn't work, I'll switch over to the tach wire.

If that doesn't work, I guess I'm calling Gabe.

 

yeah, that's a problem. means your piggyback isn't doing it's job either, or at most it's only doing a little something.

the cyl/stroke setting is only for the math, so if you have the crank wire tapped then it's 2/2, with the tach signal tapped is 4/4. Anything else and you probably have another wire crossed. Gabe was very helpful, so no matter what I suspect you will get it to work properly.

does anyone else's wideband log RPM, or are you guys planning on buying the tactrix cable?

 

Ok Guys yesterday i wento to the Dyno with qlitv, he was having some problems with his car after his dyno visit last week. Anyway when we arrived yesterday and checked the map the cell that goes in 500rpm with 1.5v had a value of 25.5. The weird part is that this is not the first time that value appears there. Anyone has any idea why is this happening. I mean the car was tuned last week and got out of the dyno with 161hp and yesterday it came with 147hp with the same map and that misterious value. Any info is appreciated.

 

It seems I got a new piggy with old instructions. I was tapped into the crank wire. Once I tapped the tach wire and set for 4/4, the rpms are reading correctly. Now to see if I feel a difference.

I'm planning on buying the Tactrix cable on Friday.

 

my tach numbers aren't reading correctly with my safc 2 either i wonder if this will work for me any thoughts lol im getting really tired of crawling under my dash