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Unread 02-24-2007, 07:09 PM   #1
gt4660
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Howell injection problems

It always happens brag how good something works and it goes to S***. I installed a howell system last week, drove for 2 days no problems. The jeep was not diven for 4 days, awaiting springs for lift kit. I went for a test drive and it died. It would turn over but not start. After several minutes of cranking it finally fired and drove fine. It seemed to be a lack of fuel issue. So i took it home and couldnt find anything obvious. Went for another drive , about 6 miles total and it did it again. after alot of cranking and cussing it made it home. dumb me didnt park in the garage and i tried to start it again and it has killed the battery and stuck outside. Sucks when its in the 20's! Ok thats my rant now I am looking for ideas....

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Unread 02-24-2007, 08:48 PM   #2
jadams68
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The next time it happens, let it cool down...if it fires back up, it may be the ignition control module....this happened to me.
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Unread 02-24-2007, 09:04 PM   #3
gt4660
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It did it after sitting for 2 hours, luckily i have an extra control module from the PO that i will through on tommorow. Going to check fuel pressure and voltage to ecm also in the morning. also the return lineand any thing else i can think off.I have been looking at the howell manual and it talks about different codes but doesnt say how to id codes with out a code reader.
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Unread 02-25-2007, 06:30 AM   #4
jadams68
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Oh wait...you didn't say that your SES light was blinking a code.
If it's blinking, all you do is take a paperclip and jump the A and B port on the ALDL connector in your dash.

Make sure the key is in the on position. What you do is count the flashes for the codes... so if everything is normal, it will flash once, than twice for the number "12" and it will flash the code 3 or 4 times and then repeat.

So if it does this:

FLASH FLASH FLASH...pause FLASH FLASH that equals 32.
It will flash 32 4 times and then move on to the next code (if there are multiple) or it will just do "32" over and over.

Give it a shot!
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Unread 02-25-2007, 08:08 AM   #5
gt4660
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no the check engine light hasnt blinked a code. I was trying to figure out how to read the code,lol. But that advice is just what i needed!! It is now 19 degrees so i am bundling up to get started
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Unread 02-25-2007, 09:41 AM   #6
Bill USN-1
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Just remember that code 12 is normal.
It means there is no DRP-distr ref pulse...which if the engine isn't running you won't have any DRP!!!

Something else to keep in mind is that most Howell systems are fuel only systems.
So there may not be an EST/ign control module. It may just have a tach filter in line from the neg side of the coil to B5 of the ECM.

So start by turning the key on and seeing if the fuel pump turns on for 2 sec and then shuts off.
If good, then crank it and see if there is fuel spraying out the injectors.
If not then check for 12V at the inj with the key on.

If there is fuel spraying then hold your foot to the floor if it won't start on it's own just like when a carb is flooded.
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Unread 02-25-2007, 11:50 AM   #7
gt4660
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Ok I checked the codes and had none. Rewired the 12v power to ecm, put the new coil in and new alt, just because i had them from PO. Added an inline fuel pressure gauge and she is running again. Only getting about 11.5 lbs of pressure though. Going to go drive it after i finish lunch and see what happens... Also replaced radiator hoses for good measure,
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Unread 02-25-2007, 02:26 PM   #8
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Got the problem lined out. Drove it about 30 miles and its running good. here is a pic of it. Done for a few days... yeah right!
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Last edited by gt4660; 02-26-2007 at 07:48 AM..
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Unread 02-25-2007, 09:31 PM   #9
jeepmor
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Fuel pressure

13 psi is spec fuel pressure. 11.5 is not too far from that and may be within the error range of your measuring tool, maybe not, just saying. You may want to adjust the fuel regulator if possible (not sure if you installed a regulator or just a gauge) or maybe replace a fuel filter. If you run the tank low, they tend to pick up the crud in the bottom and bugger up the filter.

Also, beyond the electrical issues, your cold weather may be condensing a small bit of water in your fuel, also fouling things up. A bottle of Heet or any high concentration Isopropyl Alcohol will clear that up without dropping a tank and dumping it.

When I had put mine together, way back when, I pinched a fuel line. That took a while to find.

good luck.
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Unread 02-26-2007, 06:16 AM   #10
jadams68
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Nice motorcycle... Your garage looks just like mine... a big *** jeep and a cruiser.... I run a Honda VTX 1300c.... very cool!

Glad you got her running....
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Unread 02-26-2007, 07:51 AM   #11
gt4660
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Quote:
Originally Posted by jadams68
Nice motorcycle... Your garage looks just like mine... a big *** jeep and a cruiser.... I run a Honda VTX 1300c.... very cool!

Glad you got her running....
I put the wrong pic in i have one after i finished.
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