98 pcm/harness with 99+ fuel system?

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May 19, 2005 | 10:50 PM

jimmyp

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98 pcm/harness with 99+ fuel system?

I purchased my engine package with a street and performance 98 pcm/harness and the fuel rails were converted to the single vette style. I picked up a 99 f-body fuel pump assembly to go with this. Does the type of fuel system affect the pcm/wiring at all? Or are they pretty much seperate?

May 19, 2005 | 11:54 PM

slow

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98 and 99 f-cars have the same fuel system, other than tank, both are mechanical returnless systems with a 58# rail pressure.

Ryan

May 20, 2005 | 06:21 PM

John_D.

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I've heard that the 99+ fuel level sending unit works on a different ohm range than the 98.

What are you using for a guage cluster?

May 20, 2005 | 07:56 PM

slow

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correct the fuel level sender is different between the 98 and 99 computers, so if your using a stock cluster.

Ryan

May 20, 2005 | 11:13 PM

jimmyp

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im actually going to try and use a 98 vette cluster....i have a few headaches ahead of me

i know the 98 f-bodies have a different fuel pump assembly than the 99+ though because it has an extra line coming off of it

Last edited by jimmyp; May 20, 2005 at 11:58 PM.

May 21, 2005 | 09:11 PM

Nate_Taufer

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Yeah 98 sending unit reads different impedance than 99+ for the fsu.

Nate

May 22, 2005 | 10:24 AM

jimmyp

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ok so let me get this straight...the sending unit ties into the pcm then? If it just plugs into the instrument cluster i should be ok.
Is this something a tuner can take care of maybe?

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