Fuel pump question.

So a couple years ago my fuel pump went out. It was the middle of winter and kinda critical so I was in a bit of a rush to get a new one and I wanted a Denso and ended up getting a 950-0132, which SOME parts places said was compatible....but the Denso site says is not when I checked it after the fact, and when I replaced the pump, the new one was SLIGHTLY smaller than the old one. I know that probably should have stopped me right there but like I said, it was winter, I was working in a foot of snow, I needed the truck to work, so I just chocked it up to unimportant product differences given that fuel pumps are pretty universal and went with it.

Now, the truck obviously ran afterwards and seems fine....but I gas milage sucks pretty bad.

Something like 120 miles at half a tank. When I actually calculate it out, is like 11-12 mpg mostly high way. Towing is about 7mpg, which I know doesn't mean much but it suuuuucks.

Now I have oversized tires, and a topper and roof rack....and every trip is partially on a dirt road and usually some 4wd.....so I've never been able to say for sure if my milage suffered or not from the pump or if it was something else.

But all that being said, I FEEL like I just don't have as much power or milage as I did the first couple years I had the truck. I can't really define it better than that. It was hard to tell if the pump had any immediate difference because, again, it went out in the winter so the previous month driving had been slow, in the snow, and the same for a couple months afterwards so I wasn't really able to get a good apples to apples comparison.


Anyway, before summer camping season etc comes up, I am thinking maybe I should put a better fuel pump in and see if that does anything, now that I'm not in a hurry and won't be working in a foot of snow.

The question is......what pump? It seems Denso has discontinued the model it lists as compatible with my truck.

So with Denso off the table....where would you look for a good pump? Or am I just being paranoid....I probably have 15-20K on this fuel pump so its not as if It doesn't work.

 

Denso 950-0132 is supposed to be for V6.

I would try and locate the correct Denso. If not, then one from the dealer. Those other brands of aftermarket fuel pumps are hit and miss — and mostly miss.

if you forced me to use an aftermarket fuel pump, I would choose Delphi.

 

If it were me, I would go with OEM. 23221-32020. https://autoparts.worldtoyota.com/products/product/pump-fuel-2322132020
It's such a pain in the ass to change, why even bother with anything less? But, I guess you've done it once already...

 

Wrong pump. Not enough fuel pressure. Go get the proper pump and it should resolve the issue. I'd also check your plugs while your at it since running rich or lean can cause plugs to foul.

 

Yeah, it's not a hard job. Only thing that was hard on mine the first time is that one of the hanger bolts broke off.

But damn, that is A LOT of money for a part when the problem is so subtle I'm not even sure its a problem.

 

I was lucky...one of my straps rusted through and the tank just dropped out