midnightzxt

I've been having the same problems with the HEI. Be sure of a couple of things: 1. Make sure the HEI is mounted in a cool spot with lots of heat sink. Typically the killer is overheating the module. (Obviously, next to the turbo on the strut wall is not a good idea like I did) 2. Make sure that you don't turn the MS on and leave it on with the HEI module plugged in. This has also killed them for me. 3. Buy the EXPENSIVE brand. Don't go for the $7 HEI, get the $36 one. It makes a HUGE difference. 4. Last resort, get a different ignition setup... HEI has been nothing but trouble for me, and I need something more reliable.

All I want to do is drive the car!!!! My problems are now down to 1 and I believe that I have figured out what is wrong, but not the solution. I have deducted that my car dies at the exact point when warmup enrichments stop. As SOON as the Megasquirt goes out of warmup mode, the tach (ignition signal) spikes all over the place and the car slowly dies and I can't start it up again until the engine coolant system is cold enough for the Megaquirt to be in warmup mode again. What is going on?? any ideas? Thanks, Tim

I upgraded the firmware about two days before the spark problem.. 29y4 or something like that. I'm going to work on moving the HEI, and maybe even throw in a cooling tube from the fender?

Trigger angle is 60, no addition. Time based, 10 cranking angle, 1 hold ignition, no invert, -10 fixed angle spark map is extremely similar to Moby's Dwell control: cranking 6.0, running 4.0, minimum discharge .5

Those wires are soo far gone haha. what is the vb?

Thanks Mario I have it mounted on that heat sink white glue looking stuff. I think my problem is more of where it is mounted. When I first installed the MS and was drinking more alcohol then I do today, I mounted the HEI on the stock tower RIGHT next to the turbo... and I lost my stock metal heat shield about 6 years ago. BTW... does anyone have a spare heat shield I could buy? Anyways, in what location is the best spot to locate the HEI where the engine bay produces the least amount of heat? I'm also going to ground it with 10-12 guage wire directly to negative battery ground. If that doesn't work, then I'm going to look in to changing the spark system I'm using. Can you post a list of the settings you're looking for?

I think it's because of the HEI module overheating, but it confused me. See the attached picture. Where can I mount the HEI module so that it stops overheating?? THis is like the 4th one.

after much pain and suffering (config errors), I upgraded to the latest. The advance table import what screwing up the megasquirt some how. It's running great with some additional settings. When I rev the engine is does so with flying colors except when I punch the throttle to the floor.. it chokes for a .5 sec and then revs up. I'll work on that.

You're connected to the wrong plug. One is a switch like stock and the other is variable, you're connected to the switch type and you need to be connected to the variable plug when connected to MS. I'll take a picture of mine if I can later tonight or tomorrow.

HORRIBLE NIGHT of tuning... I upgraded the code and I kept having "Config error" pop up. I finally realized that it only happened when I imported the spark table so I had to enter it manually. FIXED!!! I was a dumbass and didn't set the fidle to spark output A... it runs like a FREAKING CHARM!!! Thanks. 10.2.07 msq file Tim Gray.zip

I've GOT to have my Req_fuel wrong... 2.8L engine, 14.7 afr, 498cc injectors... what rf should that be? 6.4?

How do I turn the AE down? THe VE table is all out of wack. I'm going to tune tonight with the megalogviewer and see where that gets me I attached the constants, can you send me your vex file to tgray@graytechsoftware.com so that I can compare it to mine before tuning?

What MS are you running? I'm trying to understand why your afr table is 12x12 and mine is 8x8. Is that a embedded code issue? (I'm running 021s and going to upgrade soon)

Is it bad that I'm running code version 021s? How tough is it to upgrade to the 029q code?

Here is what my afr table looks like right now.. any suggestions?