MLS Install

scouts running really good, I haven't tried it off-road yet. That'll be this Sunday on the trail run, keeping my fingers crossed. My fuel pressure is right about 14.5 psi, found out the second filter I installed after the pump was robbing about 1.5 psi from the system. I took it out and turned up the adjustment another couple turns.

Thanks for all the help!
 
Were you running a filter other then the g3?

I found early on that the glass filters from the parts store with the removeable filters are very restrictive.
That's why I don't recommend them.

Glad you got it going in time for the trail run.

If you have anymore pressure adjustment I would use it.
Still a little lean.
If your heading to the hills it will be fine.
If your heading down in altitude then it will just get more lean.
 
That's good, everywhere I go is uphill from where I live. I think the elevation in tillamook is about 25' above sea level. I have a little adjustment left, but was saving it in case I really needed it.
I was running the g3 filter, but I thought it would be wise to run another one after the jy fuel pump I bought. Probably don't need it by now. System is running really well. Thanks, bill
 
It was good to put faces to the names. The Scout ran great on the trail ride. I bumped up the timing to around 20 degrees and cranked up the fp to about 14.5 psi the night before. My fp is not fluctuating while driving under load, so I'm going to pull the injectors like you advised and try to clean them. There are still some weak spots in the throttle while under load, I'm going to try and log data this weekend. Thanks for all the tech help sat!
 
Got a little data logged after cleaning the inch of dust off the whole Scout from the trail ride. I pulled the injectors and cleaned them how you suggested bill. I wasn't sure how long to keep them cycling so I did each about 5 min and let them sit in the solution a little longer before installing them back.
 

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Bill, just wondering if you had a chance to finish looking at the logs? I'm kind of stuck as what to do next to get it right. Thanks, Mike
 
mls said:
bill, just wondering if you had a chance to finish looking at the logs? I'm kind of stuck as what to do next to get it right. Thanks, Mike
Click to expand...

Sorry for the delay. Been busy and it slipped by me.

You show an esc error before startup. Have you put a timing light on it to make sure the timing is working?
You need to clear it and see if it comes back.
Looks like you need to lower the min idle some.
The iac hits 0 and then it kind of gets lost.
Your charging system does fine at rpm but is pretty low at idle. 12.3v looks like straight battery. Did you upgrade the alt for a high output? If so you May want to look at different pulleys to spin it faster at idle.

If you can't get anymore pressure you May have to swap out the injectors or try tuning the chip.
The blms are still way to lean.
 

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Bill, I reset the esc error and it came back. My timing is working according to the timing light.

I pulled the injectors and tried cleaning them again. A guy at the parts store said he hooks them up to a 9 volt battery to open them and then cleans them really good with carb cleaner. I tried it, not sure how good it worked.

I lowered the min idle, and redid the initial setup for the iac.

Here's where I'm at. Need advice if I should tune a chip or get new injectors?

Thanks
 

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Your still lean.
You have a couple choices.
Change injectors.
Tune chip
replace spring with an 18psi spring(ebay)

the problem with inj and spring is you will be adjusting for the best avg. The tune won't be perfect over the whole table.

But, I also don't like tuning to a bad condition.
Iirc you have the 5279 5.0 (you need to check again)injectors and the pressure is maxed at 14.5 but you cant get enough fuel.
You have changed the filter and pinched the return line to verify the pump builds pressure.
But the chip is the asdu 5.7
(if not let me know)

this is mounted on a 345.
So the computer is fueling based on 5.7 inj's.


Here's what I would do.
Check the inj numbers. 5206-5.7, 5279-5.0
this will give us an idea of where to go.

The esc error was there before the log started. If you disconnect the bypass to check timing or do the set up then it sets the code.
I don't see knock counts after start so it appears the knock is working.
The iac is still going to 0 at idle. Not sure if you set it that way because of the low idle?
The voltage is still 12.2 at idle but good at rpm.
If you have the stock alt you May want to look at smaller pulley to turn it faster at idle.
Is the voltage at the alternator only 12v at idle? Or are you supplying the ECM with low voltage?
 

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Bill, happy holidays! Finally got a few days to bring back my nemesis back to the front of my list.

I ended up replacing the alternator recently. Even after following the madelectrical tips I was still getting low voltage at the ECM. Looks much better now.

I pulled the injectors again to verify #'s and to try to clean them again. They are "5206" and even after dunkng them in very strong cleaner nothing seems to have changed. Still lean.

The ECM chip is a asdu as recommended.

The fuel pump builds scary pressure right away if you pinch the return line. Fuel pressure is sitting at 15 psi all the time.

I logged a really short blm just to check the votlage across rmp's and the fuel. Million dollar question, tune or ??

All of this is on a 1977 Scout 2 w/ a 354 auto.

Mike
 

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The fuel doesn't look bad.
The voltage looks good.
Your showing a vss and a knock sensor error.
The knock error will affect timing.
Are you running either one?
If not then they need to be installed or the bin has to be programed to eliminate the error.

I think you should log on a longer run.
 
Thanks for the quick reply. I am running a knock sensor and I'll log more data tomorrow. Mike
 
You need to check the wiring and the voltage checks for the esc circuit and knock sensor.
The key is having the 9v as specified on sheet 1 of the diagrams.

This needs to be fixed and the error cleared before logging data.
 
Good thing I checked the forum before driving this morning, not.

Logged this and will check the voltage again before the next drive. Drove good except for wot, no power.
 

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Fuel has a few spots that are lean but not too bad for right now.

I noticed the alternator took 3 min to start charging.
There is still something wrong with the wiring or the alt.

Still have the error codes.
 
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