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Search: Posts Made By: DarkMonohue
Forum: Fuel Injection 08-07-2020, 09:34 AM
Replies: 50
Views: 740
Posted By DarkMonohue
Your internet skills are better than mine. I made...

Your internet skills are better than mine. I made the mistake of going to FiTech for information. Not exactly fruitful.

If that's the style, and there's an external vacuum line, you have a few ways...
Forum: Fuel Injection 08-06-2020, 09:05 PM
Replies: 50
Views: 740
Posted By DarkMonohue
I bet you are right. I wonder if it's GM TBI,...

I bet you are right. I wonder if it's GM TBI, since what you have is similar to TBI in overall layout.
Forum: Fuel Injection 08-06-2020, 07:32 PM
Replies: 50
Views: 740
Posted By DarkMonohue
How about that regulator? FiTech says it's an...

How about that regulator? FiTech says it's an OEM style unit. What is the OEM application? How hard is it to reach and how much is a parts store replacement? If it's cheap enough to try and easy...
Forum: Off-Road FSJ Tech 08-04-2020, 06:15 PM
Replies: 9
Views: 209
Posted By DarkMonohue
Just to be clear, the pitman arm I got from BJ's...

Just to be clear, the pitman arm I got from BJ's is the one with master splines that indexes the steering wheel off-center. It does fit but is not really what I would call correct. I think the...
Forum: Off-Road FSJ Tech 08-01-2020, 04:30 PM
Replies: 9
Views: 209
Posted By DarkMonohue
There doesn't seem to be a consensus on whether a...

There doesn't seem to be a consensus on whether a dropped pitman arm is really necessary, but it made sense to me to have all the steering linkage on the same plane, or as close as possible, so I...
Forum: Off-Road FSJ Tech 07-31-2020, 01:14 AM
Replies: 9
Views: 209
Posted By DarkMonohue
Welcome! 4" is just right with 32-33"...

Welcome!

4" is just right with 32-33" tires, IMO. I have Rough Country front springs and rear springs I haven't been able to identify. They work. Starting with a J20 with factory HD spring...
Forum: Introduce Yourself. 07-31-2020, 12:55 AM
Replies: 14
Views: 411
Posted By DarkMonohue
Welcome! Always good to see another pick-em-up...

Welcome! Always good to see another pick-em-up around here. Looks like a pretty solid start.


Good call. I have toyed with the idea of backdating to a rhino or a razor, but I do love my muscle...
Forum: Online Sale Links: (Ebay, Craigslist, etc.) 07-31-2020, 12:49 AM
Replies: 2
Views: 157
Posted By DarkMonohue
Looks like a nice example. I'll pass this around...

Looks like a nice example. I'll pass this around to a few locals, see if I can generate any interest.
Forum: Fuel Injection 07-30-2020, 01:57 PM
Replies: 50
Views: 740
Posted By DarkMonohue
These are all excellent ideas. I wonder whether...

These are all excellent ideas.

I wonder whether you could wire the pump through a switch so that you can select between powering it through the ECU to powering it directly off the battery. That...
Forum: Fuel Injection 07-29-2020, 07:27 PM
Replies: 50
Views: 740
Posted By DarkMonohue
Alright. I messed up. Not sure what I have been...

Alright. I messed up. Not sure what I have been smoking. The regulator is downstream from the injectors. Whatever pressure you see on the external gauge is the pressure at the injectors.

We can...
Forum: Fuel Injection 07-29-2020, 02:17 PM
Replies: 50
Views: 740
Posted By DarkMonohue
Hold on, I'm confusing myself here. I have a lot...

Hold on, I'm confusing myself here. I have a lot on my mind and am trying rather unsuccessfully to multitask. Feel free to disregard anything I have said. Same as usual, really.
Forum: Fuel Injection 07-29-2020, 02:15 PM
Replies: 50
Views: 740
Posted By DarkMonohue
Disregard. Mistakes were made.

Disregard. Mistakes were made.
Forum: Fuel Injection 07-29-2020, 12:02 PM
Replies: 50
Views: 740
Posted By DarkMonohue
OK, great! That really clears things up. It...

OK, great! That really clears things up.

It seems unlikely that the ECU will ever be able to fuel the engine correctly if the fuel pump isn't providing the pressure and volume it expects.

EDIT: I...
Forum: Fuel Injection 07-28-2020, 11:30 PM
Replies: 50
Views: 740
Posted By DarkMonohue
Forgive me for working in circles, but I'm now in...

Forgive me for working in circles, but I'm now in front of a real computer screen and trying to read a little more carefully.

After doing some reading, it seems like you're far from the only one...
Forum: Fuel Injection 07-28-2020, 09:35 PM
Replies: 50
Views: 740
Posted By DarkMonohue
I'm a little cornfuzzled here. Where are you...

I'm a little cornfuzzled here. Where are you measuring fuel pressure?

The pump produces whatever gross pressure it makes (or rather, pressure is created because the pump tries to move more fuel than...
Forum: Fuel Injection 07-28-2020, 10:00 AM
Replies: 50
Views: 740
Posted By DarkMonohue
STOP STOP STOP! Don't introduce any more...

STOP STOP STOP!

Don't introduce any more variables! Don't spend any more money! DON'T GUESS!

Test, check, diagnose, scratch your head, whatever, but this thing is already two tons of moving parts....
Forum: Fuel Injection 07-28-2020, 09:47 AM
Replies: 50
Views: 740
Posted By DarkMonohue
I would avoid making any more changes to the...

I would avoid making any more changes to the tune. It seems much more likely that you have a physical problem that needs to be corrected.

The regulator seems to be inside the throttle body...
Forum: Fuel Injection 07-28-2020, 08:03 AM
Replies: 50
Views: 740
Posted By DarkMonohue
Alright, I know nothing about FiTech or about...

Alright, I know nothing about FiTech or about this particular system, so I'm doing a little reading here:

https://fitechefi.com/product/39001-go-efi-2-barrel-400hp-system/

Evidently there is a...
Forum: Fuel Injection 07-27-2020, 05:42 PM
Replies: 50
Views: 740
Posted By DarkMonohue
Agreed. It's definitely not going to be happy...

Agreed. It's definitely not going to be happy idling that lean.

My limited experience is that most engines idle a little better just on the rich side of stoich.

Fuel pressure at the rail needs to...
Forum: Fuel Injection 07-27-2020, 05:32 PM
Replies: 50
Views: 740
Posted By DarkMonohue
Lean AFRs aren't terribly dangerous at idle, but...

Lean AFRs aren't terribly dangerous at idle, but they won't help it run well.

You're seeing lean AFRs despite increased fuel trim and consequently longer injector pulsewidth. That does suggest a...
Forum: FSJ-PRIS 07-27-2020, 04:21 PM
Replies: 414
Views: 35,045
Posted By DarkMonohue
I believe that's a wideband sensor, and likely...

I believe that's a wideband sensor, and likely the same one the Innovate LC-1 wideband controller in my other car uses.

Does FiTech give you the means to stay in open loop mode so that you're...
Forum: FSJ-PRIS 07-27-2020, 11:33 AM
Replies: 414
Views: 35,045
Posted By DarkMonohue
There are only a few basic types of oxygen...

There are only a few basic types of oxygen sensors. Is yours wideband or narrowband? Heated or not? How many wires?

I also have some extra bungs here. Let me know if I can send you one.
Forum: FSJ-PRIS 07-27-2020, 10:43 AM
Replies: 414
Views: 35,045
Posted By DarkMonohue
At that temperature it's probably also going into...

At that temperature it's probably also going into closed loop operation and looking for feedback from the oxygen sensor. If I read your data logs correctly, the fuel trim was getting higher and...
Forum: FSJ-PRIS 07-27-2020, 08:19 AM
Replies: 414
Views: 35,045
Posted By DarkMonohue
Boldface added at key points. It ran fine before...

Boldface added at key points.

It ran fine before you painted it - i.e. it ran fine before it was disassembled. Don't change the tune. You have a physical problem that needs to be corrected.

All...
Forum: Build Threads 07-19-2020, 11:32 PM
Replies: 122
Views: 7,397
Posted By DarkMonohue
Normally I gravitate toward used equipment...

Normally I gravitate toward used equipment instead of buying brand new cheaper stuff at the same price point, but even the cheaper new stuff seems pretty decent these days, and some of them have nice...
Showing results 1 to 25 of 500

 
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