Search:

Thank you. I didn't post a tune because it was running ok until I shut if off for a few minutes to pump gas. After starting it up it ran bad like it did before the new injectors, so I thought maybe...

I am trying to work out a new problem with my 5.4 DBW. Throttle blade only opens about 1/4in at WOT. I put new injectors in, was running good, stopped for gas and when I started it back up it ran...

I don't think I said a year but the injectors are listed as being for LS 2000-2006.

I was going to use the data within the tables that match the tables in HP Tuner in terms of generic values. It...

Everything I have seen says to use the 0 kpa data if you have a vacuum referenced PR.

I just ordered DeatschWerks 95lb injectors and the GM data sheet only has data for unreferenced. I emailed...

I think it's the injectors. I have been chasing my tail with 80lb eBay injectors. My data matches yours. I had someone on here give me another data match and same results. I just ordered 95lb...

It was a bad injector. I had a second set of cheap eBay injectors laying around, figured why not and tossed them in, and I'm able to affect the AFR with the tune again. I look for correlations...

What do you suggest? It was supposed to be a low buck build so I did buy the knock off Deka 80s from eBay. I'm running a sloppy stage 2 cam and a GT45 with a 12lb WG spring.

Thank you for the input. Still staying in the 10's. My live real time tuning was working and I took the VE down until it almost stalled with little change. Once I confirm the rail pressure is same as...

Google. And I use LS because I was looking for a factory answer and one doesn't seem to exist. And where would you recommend to learn from in Evans isn't good? I had a good idle tune before. I can't...

I'm going to try this today. But why would everyone else be wrong with the Deka 80 injectors? Why was I able to tune fine before with my current data but can't now? What in my tune is causing my AFR...

Look on LS1TEch.com, they say 70% is ok. Its all over the place, and while I don't think 19% is the best, I also dont think its the worst. I gapped the rings on a $200 5.3 and put it back together. I...

If you look for Deka 80 tune on HP Forums, you will find the exact same data I have on multiple posts. There is even a few YouTube videos showing people running cheap Deka 80s with the same data. I...

Injectors worked fine before I did the compression check, reset the rockers, and added new plugs. The only thing I changed was to make the flow static when I hooked up vacuum. When I had it the other...

I zeroed out the min fuel and it didn't change anything. Ran for a few seconds at 14.5 then dropped to the low 10s. I am going to try another O2 tomorrow, but I can smell the fuel. When I had the...

No change with either. Same drop-off points.

138035

138036

I did not know that, for some reason I assumed it would pull fuel.

Its a cheap regulator. I had 2 gauges on the port on the actual unit. I am ordering a connector that will allow me to test the...

Why use trims when I have a wideband? I don't even have my other O2s wired up. I had my fuel right where I wanted it. It had other issues and after setting everything up following Evans Tuning...

I've tried everything to bring down the AFR. I added vacuum reference, dropped the PSI down to 45, cut the injector flow rate by 40%, and I'm still starting good and then dropping to the low 10s. I...

5.3 with sloppy 2 cam and Deka 80 injectors in an 86 C10. I had a good idle tune but the drivability was bad and wouldn't build boost. Its a SD tune that the AFR stayed right around 14 just wouldn't...

I was being dumb and using wrong units.

Turns out it was my overrun spring not being seated properly. I had the snap ring under the roller clutch instead of its slot. So there was no pressure on the piston. I had to replace the piston and...

It is a cheaper 2400 eBay converter but the 4L80 page on facebook said it was ok? I am questioning if all the clutch packs set in right. I thought I felt them bottom out but I was lazy, and rushed,...

Thanks for the replies. I'm pulling it back out tonight 😔 I'll try 1 more time before taking it to a builder.

It feels like neutral. It will rock a little around 1800 rpm. It doesn't make any bad sounds. I found another person with similar issues but theirs worked with the electrical unplugged, I just tried...

This was my first automatic rebuild. I watched hours of videos and I think it went together right but now it will barely move. 60 PSI at idle is all positions other than reverse and it jumps to...