1st Gen Haltech ECU Discussion

Yeah figured haha, it's not critical, we just have to find out what specifically is triggering it, usually it's cranking. Let me know if it appears again right after a startup and we'll adjust accordingly

 

According to a quick Google it says the ECU can't detect the missing tooth gap

 

Are you still running the original crank position sensor?

 

It's a home sensor error not crank.

Yeah, it happens at slow speeds cause the voltage trigger offset value is set a little high, every engine is different. Like I said we can adjust it, it isn't critical though.

 

It's a little critical
Mine would die completely once it got hot out after a cold start and started driving

 

Sorry I've been busy over here.


It does seem to be a little hit or missing on starting right up, sometimes it takes a second or two of cranking. I've definitely been better at letting the fuel system build pressure before cranking because it's much easier to hear now

 

Oh right it's home not crank, idk what I'm talking about

 

You have my timing and prime pulse numbers. Compare, try, revert and check something else.

 

Primary pulse is identical. Not sure where the timing is yet

 

Could also be your sensor issue.

 

Our TDC angles are 2° off with mine at 155 and yours at 153

Trigger and home arming voltages are a little different.

Lots of things are a little different but I don't know what 90% of these things mean so I don't know what they should look like

 

What about Ign table?

 

Send me your map. Kinda busy tomorrow but I'll look eventually.

 

I'll get it sent to you

 

Would anyone else like to take a peep at my current map. If there's changes to make I'd prefer to do it today because we'll be on the road for the next week starting tomorrow.
I have classic transient throttle active instead of map prediction still and might try making the switch again but last time it died on me back to back at 2 different intersections and wouldn't start the second time until I loaded a previous file.

I finally found the pull ups Zane was referring to. If there's a way to adjust that and get the CTS to register correctly on the ScanGauge id be very happy but my wife would be even happier because she's the one holding the laptop so I can monitor it in NSP.

 

Sadly, this did not work. I was able to tune it so the truck starts without being too rich, however, it dies immediately after the initial Rev-up. I keep getting a P0100 for MAF sensor malfunction. I think the factory ECU must be checking for a minimum MAF reading and it's not getting it so it's just refusing to continue running :/

Time to think up another plan cuz I really don't feel like doing a double injector swap



If I can somehow allow the factory ECU to control IAC and the HT spark and fuel injection, everything would be kosher

 

At least you tried

 

I learned in the process that my engine ground to battery ground is a whole 9 ohms! Can't believe it, but will be easy to add a jumper over there at some point

 

That's remarkably high actually. Maybe fatigued somewhere

 

Wow, that seems like a lot of resistance. Is it a long run? What is the gauge?