[mtntoy]

What pump can I use for my EFI install? It's a 90 1.3 and I'm putting it on my 88.5 1.3. I was given a NAPA part number, but it says it's only 6 psi, isn't that too low?

Thanks for any info.

 

[3239]

I just put a new fuel pump on my 94 zuk and I went through the same questions. I was told by a few people that if the pressure is too much then it will flood the engine. They told me about 6 to 10 psi is what is recommended. Anything higher than 15 and it starts drowning out the engine. Of course, I don't know this for sure because I ended up putting the stock type fuel pump back on and running it off a toggle switch. Hope this helps!

 

[Nowhere]

Hmmmmmmmm, since it's TBI vs multiport EFI, I think it would be under 45 psi. Dunno ##'s for sure though.. TBI is higher than carbs but lower than MPEFI

 

[1033]

The stock pump put out 70 psi when the high pressure line is restricted. The regulator controls rail pressure by dump excess fuel to the return line. I would say you need a pump that will hit 20+lbs. I think at idle, pressure is supposed to be like 17 lbs.

Anyone with a factory serice manual?