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I recently bought a 85 Fiero with a 4.9 PFI motor but it has TBI! The previous owner had been driving it for over a year with no problems. It runs and drives but is running very rich. I have found that a few of the PFI injectors are leaking (pulling air in). There is no fuel rail to hold them down ! ? I'm going to get new O-rings ($8) Has anyone ever seen this? :unsure:
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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Hmmmmm - he said it has a TBI on it, then that the PFI injectors are leaking. - strange..........
 

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70 Deville 78 Seville 92 Deville 03 Deville
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I was assuming someone swapped it to TBI and left the PFI injectors in there. weird huh? It sounds like it needs some injector hold downs. I don't even remember what they look like.
 

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2001 eldorado,2008 DTS,2005 XLR, '96 eldo,'95 eldo,' 89 eldo,'78 eldo,'11CTS-V
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You can't have both TBI and PFI, either working or not; the manifolds are different.
I've never seen a TBI manifold drilled for injectors.
 
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