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Old 02-16-2012, 07:44 AM
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engine doesn't want to idle

[B]I am workin on a 89 chevy 1500, I have installed an 85 350 and used 2 adapter plates on a torker II intake in order to use the TBI unit. I got this engine used and was told it has an after market cam (No details)all seals and gaskets have been replaced.
My truck runs great as long as I apply fuel but does not want to idle.

Any ideas on how to correct this?
I have the timing adjusted to where it runs best, can I turn up the idle?
I don't want to mess with the computer.

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Old 02-16-2012, 08:23 AM
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Sure you can turn it up but first what is your idle rpm now if you can read it? You also might need to put a vacuum gauge on it. You need more details on what you running though that intake may be a bit much.
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Old 02-16-2012, 03:58 PM
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I turned up the idle and now it idles but doesn't want to to run on its own at start up it runs like a carb that need to be choked
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Old 02-16-2012, 04:04 PM
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First off , ditch the torker 2 intake and put a TBI intke on it, the large runners of the torker 2 probably are causing fuel to precipitate in the intake as the TBI is a "wet " system, meaning fuel is present in the intake.
You will notice the TBI intake has defined and dedicated runners to each intake port for each cylinder.
Also after any engine swap with TBI a Minimum Air Rate Adjustment is almost mandatory. I think between the two, you will get it to Idle properly.
Be sure if the check engine light is on, diagnose and repair any codes first.
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Old 02-17-2012, 04:07 AM
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Quote:
Originally Posted by Catfish11
Sure you can turn it up but first what is your idle rpm now if you can read it? You also might need to put a vacuum gauge on it. You need more details on what you running though that intake may be a bit much.
I haven't installed a tach yet
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Old 02-19-2012, 06:29 AM
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Quote:
Originally Posted by latech
First off , ditch the torker 2 intake and put a TBI intke on it, the large runners of the torker 2 probably are causing fuel to precipitate in the intake as the TBI is a "wet " system, meaning fuel is present in the intake.
You will notice the TBI intake has defined and dedicated runners to each intake port for each cylinder.
Also after any engine swap with TBI a Minimum Air Rate Adjustment is almost mandatory. I think between the two, you will get it to Idle properly.
Be sure if the check engine light is on, diagnose and repair any codes first.
i replaced the torker with the factory manifold from a 85 350. it made a great improvement. but still not 100% how do you adjust the air rate?
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Old 02-19-2012, 06:58 AM
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read the article listed below. Also be absolutley sure you have the timing set correctly first.
http://forum.73-87chevytrucks.com/sm...?topic=21039.0

The picture posted below is the diagnostic connector and its pin designations
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