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Old 08-26-2013, 05:28 PM   #26
caddymatty
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Re: 85 el camino w/ tpi

Yeh it has been changed to a MAP setup now. I am going to check to see it to the computer and if its all intact. If the diaphragm is only thing bad it still takes a different one than a stock fpr or no? Finding it is a bit of a pain especially since I don't know the brand, or maybe all aftermarket are the same size
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Old 08-26-2013, 09:47 PM   #27
MalibuSSwagon
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Re: 85 el camino w/ tpi

Do you have a check engine light hooked up? You can pull codes from an OBD1 computer quite easily by jumping the A and B terminals in the ALDL.

Check out http://chevythunder.com/ , its the go to resource on the internet for TPI swaps and troubleshooting.
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Old 08-26-2013, 10:40 PM   #28
Jabes1
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Re: 85 el camino w/ tpi

The aftermarket fpr uses a stock diaphragm. The only difference between a stock fpr and aftermarket is the adjustment provision.
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Old 08-27-2013, 12:21 PM   #29
caddymatty
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Re: 85 el camino w/ tpi

See I was wondering if that was the case also I had assumed it was but not sure with the diaphragm
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