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Re: Throttle body swap
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Thanks for the help and advice. I always been mechanical but very deficient when it comes to carburetors.

Gene

Posted on: 2014/4/13 1:49
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Re: Throttle body swap
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Yes. And many of us prefer EFI.

If the only problem is the computer going bad, I'd move it to a cooler place, away from the heat and vibration of the engine. You could also use a MegaSquirt ECU to replace the bad computer, they are less expensive.

Posted on: 2014/4/13 1:53
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Re: Throttle body swap
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The manufacturer told me it could take 190. Deg. F. THe original position was dead on top of the manifold at the hottest spot of the engine. I moved it to the outside and put a fan on it with a thermostat. It never got above 140. The next time i moved it completely off the machine figuring that the vibration killed it since the heat had been solved. Each time I moved it and thought I had it solved. This time I extended the cable 4' and its under my box truck in a water tight box. No heat and no vibration. It's is actually number 4 counting the first.

Gene

Gene

Posted on: 2014/4/15 0:27
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Re: Throttle body swap
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Just saw a megaSquirt and it has the same connector that zenith uses. Strange coincidence except they use black instead of grey

Gene

Posted on: 2014/4/15 22:12
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Re: Throttle body swap
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Hmm.. megasquirt is $300 in kit form $500 finished.

Posted on: 2014/4/15 22:58
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Re: Throttle body swap
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Posted on: 2014/4/18 1:40
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Re: Throttle body swap
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How did you end up solving this?

A15 industrial engine from 2002
Open in new window


Zenith Fuel Injection
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Zenith ECU
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Open in new window

Posted on: 2015/9/12 0:20
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Re: Industrial A15 with Zenith EFI
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It is a Zenith ZEEMS throttle body EFI system along with matching ECU computer

here are the photos saved years ago, plus a couple others such as a wiring diagram

Attach file:



jpg  2002 NISSAN A15 ENGINE FAMILY 2NSXB01.5450 (off-road) imagejpg1_zps27f8c5c1.jpg (149.38 KB)
174_667ce33313bef.jpg 1440X1080 px

jpg  ECU imagejpg1_zps37d159db.jpg (66.21 KB)
174_667ce37c26543.jpg 1024X768 px

jpg  ECU imagejpg1_zpsa4bee84a.jpg (85.73 KB)
174_667ce3a716278.jpg 1024X768 px

jpg  side air inlet on downdraft throttle body zps-A15.jpg (56.38 KB)
174_667ce3bf80ac1.jpg 705X604 px

jpg  Air Temp Sensor zps-iat.jpg (49.59 KB)
174_667ce3d372ef4.jpg 784X560 px

jpg  MAP Sensor zps-map.jpg (59.49 KB)
174_667ce3ea6d896.jpg 832X624 px

jpg  stock manifold with adapter plate imagejpg1_zpsd151a049.jpg (107.52 KB)
174_667ce402c62f0.jpg 1024X768 px

jpg  Throttle Body DSC05083.jpg (90.72 KB)
174_667ce40f37d2f.jpg 1024X768 px

jpg  Zenith A20098 (2004) zps-gov.jpg (77.21 KB)
174_667ce420b0746.jpg 832X624 px

jpg  Throttle Body zenefi.jpg (70.12 KB)
174_667ce43be12b5.jpg 958X636 px

jpg  Wiring Diagram zps-wir.jpg (102.04 KB)
174_667ce452ecf45.jpg 1024X666 px

Posted on: 6/27 5:02
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