sorry but i still have some more questions :)

[CASPERAMC]

im pretty confused about the wiring. i know there is this setup:
http://www.rs-autosport.net/catalog/...iring_420a.gif
which i have to follow but i am unsure if i am supposed to splice into the wire and share it, cut the wire and wire the ms to the pcm side of the wire, or the other side of the wire i cut.

-the power wire for the ms should be cut into and replace the wire going out of the pcm on C1-11?
-i think i might have to share the signal wire for the tps C2-21 and the crank pos signal C2-35
-C2-29 i think i have to cut and wire and wire to a 5v output from the ms (not sure where or what pin) and i believe it should be on the wire going away from the pcm maybe wrong though
-C3-3 and C3-37 both have to be cut and wired to ms pin 37 on the wire going away from the pcm
-C2-14 and C2-11 both have to be cut and connected to ms pins 32&33 on the wire going away from the pcm
-C2-12 and C2-13 both have to be cut and connected to ms pins 34&35 on the wire going away from the pcm
-C2-9 and C2-10 are for the ignition and i forgot which pin on the ms thsy go to but im assuming its cut those and wire in on the side away from the pcm.

i think i might be set for wiring after that. if those questions made any sense please help lol. also, i know that ms can run fuel without spark fine without the ngc decoder, but how does it know when to inject fuel if it can't read the trigger wheel?

also, how do i know that i have the ngc code loaded in megatune, is there something i have to click for ngc? or do i have to set up trigger points or something, im really confused on that part

thanks alot for your time and hopefully patience
-mike

[boost junkie]

For reference: http://megasquirt.texasneons.org/pics/srt_pinout/


-the power wire for the ms should be cut into and replace the wire going out of the pcm on C1-11?

Correct.

-i think i might have to share the signal wire for the tps C2-21 and the crank pos signal C2-35

Yes, that will be spliced.

-C2-29 i think i have to cut and wire and wire to a 5v output from the ms (not sure where or what pin) and i believe it should be on the wire going away from the pcm maybe wrong though

You have an option here. Either leat the NGC computer provide the 5v or let the MS provide it. There's still a debate as to whether the NGC computer cuts voltages to certain devices. So, at this point nobody really knows. To be safe you could cut this wire and go directly to the MS 5v output.

-C3-3 and C3-37 both have to be cut and wired to ms pin 37 on the wire going away from the pcm

Correct.

-C2-14 and C2-11 both have to be cut and connected to ms pins 32&33 on the wire going away from the pcm
-C2-12 and C2-13 both have to be cut and connected to ms pins 34&35 on the wire going away from the pcm

That will work.

-C2-9 and C2-10 are for the ignition and i forgot which pin on the ms thsy go to but im assuming its cut those and wire in on the side away from the pcm.

Correct.

Quote:

i think i might be set for wiring after that. if those questions made any sense please help lol. also, i know that ms can run fuel without spark fine without the ngc decoder, but how does it know when to inject fuel if it can't read the trigger wheel?

Fuel injection is not timed with the crankshaft at all. It doesn't need to be unless you're doing sequential injection. Since the MS does batch, it's not required to know where the crankshaft is.

Quote:

also, how do i know that i have the ngc code loaded in megatune, is there something i have to click for ngc? or do i have to set up trigger points or something, im really confused on that part

When you have the proper firmware loaded into the MS and connect with megatune it will say "029v NGC3" on the megatune title bar. There's no menu item for NGC. If the NGC stuff gets real popular I can push to have the decoder added to the final release. For now, it's a seperate code base.

Setup the megasquirt as a 36-2 wheel with the following trigger points:

Angle: 65
Trig A: 11
Return: 16
Trig B: 29
Return: 34

Confirm with a timing light! I still don't think anyone has done this....

[Overcome]

I just checked which code I have and it's the 029v NGC2. Am I running the wrong one??

[boost junkie]

Yep, get NGC3

Megasquirt reads NGC crank signal. Need testers...

[CASPERAMC]

ok so my power cycle changes should look like this and i should have it on generic wheel? also i read the huge post about the code a few times and i cant get is spark invertes or no



thanks
-mike

[boost junkie]

You can grab the settings out of this file:

http://megasquirt.texasneons.org/NGC.msq

Spark invert depends if you have internal or external ignitor. If the coils are wired directly to the megasquirt (internal ignitor) then you need spart set to inverted.

[Overcome]

Just to clarify, we should set spark angle to 65 now instead of 56?

[CASPERAMC]

well im not going to use srt stage 1 injectors anymore, so i am using my stock 2.0 injectors which are 19lbs, so the req_fuel went up to 16.7ms, is it ok that i put it to 4 injections per engine cycle instead of 2 so that the req_fuel is 8.3 is that ok or should i just run it with 16.7

thanks
-mike

[boost junkie]

Leave it at 2 squirts, alternating.

Overcome: I don't know what the correct angle is. It still hasn't been verified with a timing light (AFAIK).

[SpecJ]

Ok... couple of things that I see wrong or unclear about the given information.

Power Source:
Why would anyone CUT C1-11? Its a 12v run start wire that I'm pretty sure powers other hardware... just splice the wire in.

TPS/Crank Input:
Thats pretty straight foward, just splice the wires.

5v Crank Source:
Yes, I agree with shawn to use the 5v source (pin 26 on the MS) to power the crank sensor.

ASD/Fuel Pump:
Ok, cutting C3-3 (ASD) and using the section running away from the PCM to the wire running out of pin37 on the MS (12v source) makes sense.

Why are we cutting the fuel pump relay wire and running it to pin37 again? All this did for me was stop my fuel pump from working. The PCM is also giving out on 10v.

Fuel/Ignition:
Those are fairly simple so there really isnt any confusion...

[boost junkie]

You're correct on the C1-11 pin. Splice into that one. The idea on the fuel pump pin is to run it from the megasquirt. However, if the stock ecu runs it fine (as it does on the 1g neon) with the MS controling the other stuff then I would leave it alone.

[SpecJ]

ok good. Yeah, this was a problem I spoke about MONTHS ago when i previously had this setup and it actually caused problems. I'm glad thats over with!

I'm gonna give this another shot on thursday. The MS is reinstalled and ready to rock except for the easytherm calibrations for CLT and IAT.

Hopefully the new code should and clean install should rid me of those problems I had so long ago.

BTW, good work thus far... when it's all said and done, i'm gonna come down and buy you are beer!

[MegaSquirtPR.com]

Nice info you have put togheter here! Thanks!

I have something I notice, boost: you said one should specify a 36-2 wheel setting, but on the pic posted by CASPERAMC the pic is showing a -1 instead of -2. It be nice to fix this for the people that are more visual oriented and will not read the actual post well enought!

I'm installing into an SRT4 stock internals that was swapped to a PT-Cruiser.

I did not found your posts on time and tried to start using the 420a ignition setup 'label' at MegaTune instead of specifying wheel decoder settings like you are suggesting! Ups! hehe... Even tough it tried hard to start. I'm doing tests again hopefuly today and will post my findings.

I noticed you need someone to use a timing light to identify the correct or most correct crank angle. Do you need this angle to be so that the engine could have exactly a 10 degree Crank Advance Angle when using the timing light? If you explain a bit I might be able to get the exact angle for you guys, that is if I found my timing light gun

Another dumb doubt: How can I post an attachment on this thing? does it has to be an inline/external link if I do want to post an image? Well I will test now..


- Jose

[boost junkie]

It needs to be set to 36-2

[SpecJ]

latest NGC code seem to be running on 2 cylinders, what was the update in this version?