Hi All.

So I have a 73 Camaro, LS, whipple. M6, ID1050x. I was using the oem computer last year and I always seemed to have low rpm slight issues. So I figured that I'd upgrade to a holley terminator x this winter.

I installed it.
Started right up
Drove it for about an hour.
Noticed still having low rpm driving issues.
I figured it can only be 1 of 3 things.
1) dirty injectors
2) bad plug wires
3) faulty coil

Anyways that's not the issue. Just giving some background on my thinking.

So I started with maybe having dirty injectors.

I removed the injectors ( which to do on a whipple motor you have to disassemble the whipple) got them cleaned and checked. There was a small amount of dirt in a few of them, but nothing to be concerned with. I put them back in and reassembled. I also added a new 10 micron fuel filter. It was a 100 micron.

The car hasn't run since. It only runs on 3 cylinders.
I checked wiring.
Both head grounds are secure.
Spark at all plugs
Noid light shows all injectors firing
Same program as was running before.
fuel pressure good.
I get an rpm. When cranking.

In my search I noticed when taking the supercharger in and out I stepped on the main holley power feed. It looked like it might have been unplugged slightly. I plugged it back in and it acts the same. Could I have blown up the computer?

And to add to it. I can't get registered onto the holley forum. I've tried twice and I can't get in. I tried emailing the administrator, but it comes back as undeliverable.

Sorry, I'm at wits end.

 

Sorry to hear about your issues, but the terminator X does has error LED's on it, maybe this can help?

https://documents.holley.com/199r11761.pdf

 

First thing I would do is confirm that the injector wiring is going to the correct injector, I've seen that mistake happen a few times.

I don't know if the Terminator X responds the same as the Dominator and HP ecu's because they are completely different but run the same basic software, When my battery died over the winter on first startup it ran terrible yet everything looked fine on cranking logs, I decided to reload the tune and it ran great after that.

What low RPM issues where you having?

 

I'm pretty sure they were all green. I just got new plugs and will try again and watch the leds while starting.

Thanks.

 

It might be worthwhile to contact Andrew aka
Project GatTagO. He is a wiz with tuning Holley stuff

 

Well guys, I think that I might have got it.

Sheer luck, from what I see.

What I did was, I noticed that my harness I got for my knock sensors was a bit tight around the engine block. I disconnected that from the holley and replaced the spark plugs.

i will investigate the knock sensor wire some more, I think it might have shorted to ground.

 

The knock sensors are turned off by default in the Terminator X software. You would need to calculate and populate the values and input them into the software. I suppose it's possible that you were grounding the ECU. So are you up and running now?

 

ive had unexplained no starts a couple times that doing a tps autoset fixed it.

 

Wiring issues can cause all kinds of gremlins. Your idle instability is probably tune related.

Andrew