Denso 195130-1020 fuel pump

**goldNSX** · 07-12-2012, 13:48

Did anyone install a Denso 195130-1020 fuel pump? It's used in the Toyota Supra MKIV.

After rewiring the Walbro 255 LHP to 14 volts I hate it for it's humming in the back.

**Elite** · 07-12-2012, 17:32

I haven't done one on an NSX, but they were a common pump many years ago. Since then, the fuel pump options expanded. From memory, the body of the pump is larger than a Walbro 255, and could be comparable to a Bosch 044(maybe a tiny bit smaller) which both fit in the NSX.

**DDozier** · 07-13-2012, 19:15

Originally Posted by goldNSX

After rewiring the Walbro 255 LHP to 14 volts I hate it for it's humming in the back.

how did you mount the Walbro? I really can not hear my Walbro if the engine is running.

Dave

**goldNSX** · 07-14-2012, 01:15

Originally Posted by DDozier

how did you mount the Walbro? I really can not hear my Walbro if the engine is running.

Dave

I've bought it from SoS with the dampening hardware and rubber cushion. I don't hear it whining, it's more like a resonance of the fuel tank with a frequency of somewhere around 100-300 hertz. The resonance is changing a little bit which makes me go crazy. It's annoying up to 50 mph. Above that the road noise is too high.
I suspect that we put too much pressure on the cushion and now the vibrations go up the pump hardware and resonate the fuel tank. The fuel tank is about half. I've read in the internet that people used dynamat on the fuel tank.

I'm going to throw it out for sure and mount a differnt pump. Denso for Supra would be an option. Is superior OEM quality too and said to be much quieter but consuming more current.

**DDozier** · 07-15-2012, 09:18

Originally Posted by goldNSX

I've bought it from SoS with the dampening hardware and rubber cushion. I don't hear it whining, it's more like a resonance of the fuel tank with a frequency of somewhere around 100-300 hertz. The resonance is changing a little bit which makes me go crazy. It's annoying up to 50 mph. Above that the road noise is too high.
I suspect that we put too much pressure on the cushion and now the vibrations go up the pump hardware and resonate the fuel tank. The fuel tank is about half. I've read in the internet that people used dynamat on the fuel tank.

I'm going to throw it out for sure and mount a differnt pump. Denso for Supra would be an option. Is superior OEM quality too and said to be much quieter but consuming more current.

That is a bummer, dropping a fuel tank in a NSX is one of my least favorite jobs to do on the car. I have had a bad Walbro that made a lot more noise than normal. I changed one out for another local guy and ended up doing that job twice as the pump was noisy, installed another Walbro in its place using all the same mounting parts and it was as quite as can be. I have actually got in the habbit of testing all new pumps prior to installing them in the tank to test for flow and noise.

I have done about 20 Walbro's over the years and a hand full of Deatschwerks pumps with very few failures from either. If you are still looking at pumps take a look at the DW200 and DW300 in tank pumps.

Dave

**goldNSX** · 07-15-2012, 12:35

Thanks for your advice. In a few weeks I can compare it to a friends car with a similar setup and the same pump. If it's quieter in his car then it's too bad I gave him the quieter pump of the two I've ordered.

I won't install a Walbro anymore. If I can get an OEM Denso pump for a Toyota Supra then I go this route to OEM quality. Thanks for the hint to DW pumps. I'm not sure about DW and their quality, I'm not into gambling anymore. It's a PITA to change the pump I know I may do it next year but better than going crazy due to the noises.
Does anybody know a liable Toyota parts store with genuine parts which ships overseas?
Does anybody know Kyosan fuel pumps? They're are claimed to be Denso.

**joboo** · 07-15-2012, 13:55

interesting..I am also going to be using a Denso Supra pump soon!

**goldNSX** · 07-15-2012, 13:58

I'm not fond of unreliable chinese copies from eBay and the like.

**joboo** · 07-15-2012, 14:02

Originally Posted by goldNSX

I've found a supplier here: http://www.suprastore.com/tosu2jfupufa.html

I'm not fond of unreliable chinese copies from eBay and the like.

Thats great, thanks! I hope you upgraded your wiring as well!

**goldNSX** · 07-15-2012, 14:07

Originally Posted by joboo

Thats great, thanks! I hope you upgraded your wiring as well!

I have to when the fuel tank off the car. The Denso pumps are said to draw up to 20A of current.

**goldNSX** · 07-17-2012, 08:47

The Walbro-nightmare continues. After an extended drive with a lot of boost the cars smells like something is burning electrically, not on the inside but on the outside of the car. I know that the wire from the cabin to the pump has not been changed as it meant to drop the fuel-tank again. I'm pretty sure that's the cause. Very, very soon, I'm getting a Toyota Supra fuel-pump, update the wiring to 20A and get wrid of the bloddy-bastard-noisy-Walbro!

**kookoo4nsx** · 07-22-2012, 10:48

I had my dealer install my Walbro. Labor was about $300 or so. When I turn the key I can hear it kick on for 2-3 seconds. Besides that, it makes no noise. Perhaps you can get yours replaced under warranty.

**goldNSX** · 07-22-2012, 13:15

Originally Posted by kookoo4nsx

I had my dealer install my Walbro. Labor was about $300 or so. When I turn the key I can hear it kick on for 2-3 seconds. Besides that, it makes no noise. Perhaps you can get yours replaced under warranty.

Thanks for the hint. We've installed it DIY so we're the guys who will warranty that.