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 Howell TBI, Best Investment
#743439
08/08/06 10:48 PM
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Joined: Apr 2006
Posts: 46
OP
Getting the Wheeling Fever
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Honestly, I finished installing the Howell TBI and she started right up and idled beautifully. Never had to any adjustments and she runs great. The acceleration is unbievable and even runs quieter.
This was done on a 89 YJ with a 4.2, 5 speed. The worst part about it was that I just installed a new rebuilt carb and a new ecm. But, these never fixed the issues the mechanics stated it would.
So, if anyone is interested in making an offer on these to items, I'll be glad to part with them.
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 Re: Howell TBI, Best Investment
[Re: RLBomber]
#743440
08/08/06 11:30 PM
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Joined: Oct 2003
Posts: 7,768
Web Wheeler
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Howdy RLB You did do the nutter didn't you? She should run retarded and maybe hot if you didn't. Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />
professional bovine relocation specialist
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Re: Howell TBI, Best Investment
[Re: BigJim]
#743441
08/09/06 12:45 AM
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Joined: Apr 2006
Posts: 46
OP
Getting the Wheeling Fever
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Big Jim, that's all part of the installation. They provided a new ecm that by passed the ignition module.
There was no other adjustment necessary. But I will tell you that it's a pain in the ass to put all those wires back in the harness.
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Re: Howell TBI, Best Investment
[Re: RLBomber]
#743442
08/09/06 02:28 AM
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Joined: Oct 2003
Posts: 7,768
Web Wheeler
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That is a gooder deal. Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />
professional bovine relocation specialist
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Re: Howell TBI, Best Investment
[Re: RLBomber]
#743443
08/09/06 07:01 AM
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Anonymous
Unregistered
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Big Jim, that's all part of the installation. They provided a new ecm that by passed the ignition module. Correction: The ECM provided bypassed the computer controlled carburetor. The ignition module is still in the equation.
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Re: Howell TBI, Best Investment
#743444
08/09/06 04:15 PM
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Joined: Oct 2003
Posts: 7,768
Web Wheeler
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Well hell! RL you need to check the timing real good ar several rpm to see what is happening. If you do not get all the timing you need then do the nutter and it WILL run better. I might just go ahead and do it anyway to make sure.. No! Scratch that... I WOULD do the nutter anyway! Then I would KNOW I had it running at it's best. Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />
professional bovine relocation specialist
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Re: Howell TBI, Best Investment
[Re: BigJim]
#743445
08/11/06 05:49 AM
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Anonymous
Unregistered
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If you do not get all the timing you need then do the nutter and it WILL run better. I might just go ahead and do it anyway to make sure.. No! Scratch that... I WOULD do the nutter anyway! The Nutter bypass is bypassing the ECM for the stepper motor and pulling the ignition module out of the ECM's feedback loop, correct?? With Howell EFI that ECM is removed from the equation altogether. It isn't physically there to bypass any longer, therefore the Nutter bypass isn't applicable. It's in effect already done. <img src="/forums/images/graemlins/kewl.gif" alt="" />
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Re: Howell TBI, Best Investment
#743446
08/11/06 06:18 AM
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Joined: Oct 2003
Posts: 7,768
Web Wheeler
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CSp you are totally WRONG! The nutter bypases the computer to the dist... Makes the dist respond like it should without the stepper motor carb.. Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />
professional bovine relocation specialist
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Re: Howell TBI, Best Investment
[Re: BigJim]
#743447
08/11/06 06:57 AM
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Anonymous
Unregistered
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BJ, you just paraphrased what CSP said in less technical terms. In essence the howell "nutters" it as part of the modification.
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Re: Howell TBI, Best Investment
#743448
08/11/06 02:47 PM
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Joined: Oct 2003
Posts: 7,768
Web Wheeler
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So the kit furnishes components to do job as it needs to ne done? I'll accept that. No matter how it gets done the dist needed to be turned loose somehow. Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />
professional bovine relocation specialist
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