So I added a TPS using the instructions from the MSPNP manual (remove R6, R7, and add two jumpers) but now have some really weird stuff going on.

I no longer have a correct coolant temp reading. It is stuck at 170°F. And the voltmeter is stuck on something like 29.998V. Also, I have some nasty idle-hunting now. Plus, if I turn on the AC (just added a belt...it's been off since before going MS and turbo), and the car stalls coming to idle while driving, every time.

Anybody have any ideas?

 

https://www.miataturbo.net/forums/sh...ad.php?t=11792 read my post, it's the second one. it'll help you with the AC stall at light thing.

 

I'll give that a try. Thanks.

 

:scratches head:
sorry man. Jerry said he was going out of town. Hopefully Matt Cramer will check the forum soon.

At least does the TPS work?

 

One thing I just thought of about the CLT which is odd...the fan turns on...but that's set for 175°F...?

I checked a quick datalog to see if maybe MegaTune was just being wonky with displaying the CLT, but the log had 170°F constant.

 

Ok, this is weird also. When I open a subwindow in MegaTune, the gauge freeze-frame shows CLT accurately.

I can't get the idle sorted. It's WORSE with the TPS!

 

2 things
1> Did you restart your laptop?
2> Idle settings need to get tweaked.

I'm ******* bored as ****, at home alone on a Saturday night. Let's fix the ******.
B

PS, #1 is rhetorical.

 

Haha

My idle AFRs are jumping all over the place.

I'll give you a call after dinner with the wife

 

Ok, this CLT issue is bad, real bad.

I hooked the Palm into the MS to see if it gave the same readings for CLT and BatVolt that MegaTune did (170°F and 29.88V), and the PalmTune showed CLT of 1017°F and BatVolt of 29.88V, which explains why the fan is now on constantly (1014>175).

Also, cold cranks aren't very fun when the MS isn't triggering cold-start enrichments, even when ambient is 90°F.

So anybody have an idea as to what I screwed up?

 

Question is when you open up the megasquirts, did you cross a wire or did solder make a connection it shouldn't have.

 

You realize you have to set up the Palm software to match your sensors. Make sure you read through PalmLogs site (http://www.blessedmemories.net/Palm/PalmLog.htm) and change the resistance values to match the stock sensors (you will have to use EasyTherm to get the correct values). As far as your battery voltage goes, can't really offer any assistance there.

 

Check my thread for the wrong collant temp. Your CLT is wrong because you removed either r4 or r7. I forget which one is the resistor for coolant but you need that in for the CLT to read correctly. I will put money on thats what is wrong.

 

I am wondering at also... wish I had exp with mega, cause I am just a stone throw away, from him. Where is ben...lol

 

Yeah, I did that before I ever hooked up the Palm. Palm had been reading temps just fine previously.

 

Interesting...the MSPNP manual instructs to remove R7 for the TPS mod...

 

R7 gets burned off when you do the TPS mod. It's gone on mine, and my Coolant temps sensor works right, and has since the mod was done.

 

You have a photo for him to look at, maybe he crossed a wire. I am really thinking something is in the wrong pin.

 

I actually called Ben for verification on his modded board to make sure I was wiring the correct pins. They're correct. The only thing I can think of inside the unit is some midplaced solder, but I was really careful and inspected before putting it all together and didn't see anything.

 

Ben did you pull R7 from the daughterboard or the main board?

 

Uh oh. From the main board. I didn't even see R6 or R7 on the daughter board.