[78 Elk]

Thank you. The last 3 times I ran it on the road have been over 25 miles a trip. The trip speed goes from 25 mph to 65 mph. The engine temperature is at 197*each trip and at the end of each trip the IAC number is over 20 when I restarted it to put it in the garage and that’s on a warm engine. Cause I just shut it off, go through the house and restart it and drive it in. When I started it 4 times yesterday I seen the numbers were not the same each time I started it. I was trying to show the numbers were inconsistent and the last start numbers were what I was trying to get to. These numbers haven’t been consistent after running it on the road. After I found out that PCV was bad and restarted it the IAC number stayed high But when I plugged the port before I changed it the IAC numbers were where they were supposed to be. This was telling me that the system isn’t telling me correctly what the numbers really are . I don’t know the solution but trying to figure it out.

 

[78 Elk]

Holley Performance suggested I reprogram it. I tried and now it won't start at all. I tried calling them and was on hold for 30 minutes. I gave up until Monday.

 

[EL S ONE]

Good luck When you call Monday. Everybody's calling about the problems they have encountered with their Holly installs.

 

[78 Elk]

Thanks for sharing this with me. Yes, I've been calling them, trying to figure out what I need to do. I'll try reading the manual tomorrow and see what I can figure out from it. Every time I have called it's been a 20 minutes on hold before they answered.

 

[EL S ONE]

Only 20 mins?. Not bad!

 

[78 Elk]

Does anyone have an idea what I need to add to get the system to start the 78 El Camino?

 

[Hat Trick]

Does the system come on? Did you lose your fuel pump? Spark?
Tom

 

[78 Elk]

Good question, I don't remember. Going to try it again.

 

[78 Elk]

Just tried it again and the fuel pump is running. I don't know about the spark. I don't have any one to help me check that. It's definitely not firing.

 

[78 Elk]

The hand held screen lights up but no numbers.

 

[78 Elk]

I'll have to watch the video and adjust the TPS because it now reads undefined.

 

[78 Elk]

I have been trying to get it to start. I had tried several times. I went out today and turned the key and it started, but not running as smooth as I would like.

 

[78 Elk]

I restarted it again and it ran better. The IAC number was dropping. I shut it off again and restarted it and the numbers got better and it was running very nice. I have a new problem the temperature on the hand held was flagged at yellow and when it was getting to the 170* and warmer to the 195 * it turned red and stayed there. I called Holley Performance and they didn't have an answer. So I'll have to try it out and see what happens with it. I even clicked the button to not show warnings, but it still did. I'll try starting it tomorrow and hope to get it on the road Wednesday. I appreciate everyone's help with this project. The interesting thing is that the temperature flag is the normal temperature that it always runs at.

 

[78 Elk]

Does anyone have any ideas on how come the temperature on the hand held unit has a yellow warning at 60* and and turns red at 92*, when operating temperature is 197*?

 

[Hat Trick]

Did it change to Celsius from Fahrenheit?
Tom

 

[78 Elk]

No, it’s still Fahrenheit

 

[78 Elk]

I learned something today from Holley Performance. When I adjust the screw I can have the engine running while I tighten the screw, but if I'm backing it up, I need to shut the engine off while I'm making that adjustment or it won't work.

 

[Caballero Joe]

78 I highly recommend following the steps on the YouTube video.
Once you have your TPS & IAC, according to the video drive your truck for 50-75 miles and allow it to Learn before you make any changes.
After 75 miles, if it doesn't behave much better then make minor adjustments

 

[78 Elk]

Thank you for your help. I’ve got a little bit over 50 miles so far. 25 or more miles a trip. I’ll see if I can get another 25 plus miles in tomorrow.

 

[kat0069]

apologies, my reply was irrelevant, I didn't realize you had it running already. Congrats