Fuel Pump Suction Control Valve

[gxl_d4d Advanced Member Find all posts View Profile Close gxl_d4d]

Any one know the Denso part number for the SCV?

[gxl_d4d Advanced Member Find all posts View Profile Close gxl_d4d]

Also, should the SCV valve come with any gaskets?

[cfryback Find all posts View Profile Close cfryback]

Well based off of this thread, did a quick search....

$142!

http://www.amayama.com/search/?q=0422630010

I'm in - how hard is it to change one out on a Prado? Is it easier to remove the sump guard and do it from below?

I'll let you know

[cfryback Find all posts View Profile Close cfryback]

This is what I ordered, so yes comes with seals

Also, should the SCV valve come with any gaskets?

[gxl_d4d Advanced Member Find all posts View Profile Close gxl_d4d]

Thanks. I got a Baileys one. No gaskets. I've changed it out already reusing the o-ring on the base of the SCV valve and the gasket.

Getting the bottom bolt in and out was a pain in the A. I ended up rotating the SCV such that the electrical connector was facing down rather than up to make getting the plug off easier next time.

The pressure fluctuation is much less. Was around 4000 before. It's around 1200 now. Acceleration is slightly better from standstill but much better while rolling and giving it the boot.

[cfryback Find all posts View Profile Close cfryback]

Thanks. I got a Baileys one. No gaskets. I've changed it out already reusing the o-ring on the base of the SCV valve and the gasket.

Getting the bottom bolt in and out was a pain in the A. I ended up rotating the SCV such that the electrical connector was facing down rather than up to make getting the plug off easier next time.

The pressure fluctuation is much less. Was around 4000 before. It's around 1200 now. Acceleration is slightly better from standstill but much better while rolling and giving it the boot.

That is what I am hoping for. Thanks for the tip!

Did you go over fender of under to replace?

[gxl_d4d Advanced Member Find all posts View Profile Close gxl_d4d]

Over the fender. Taking my TJM bash plate off is a bit of an excercise with only 1 person.

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

Nah mate its got the egr blank plate installed when it got a new head.
Its just a kz.

Sorry been busy again, I was alerted to your question by another member by text, that's why I text you, actually I don't think I've replied to your reply, too busy........ Like Adrian said no Scv.
So did you give the map filter a good clean?
It shouldn't be gutless.

[MRW82 Member Find all posts View Profile Close MRW82]

My suction control valve arrived during the week (the day after ordering it from baileys, great turnaround time).
All I can say is wow, what a difference.
Smokey exhaust has improved drastically! And the engine is a lot smoother and more responsive too (even though it was smooth before, the improvement is noticeable).
I haven't yet filled up to see any change in fuel economy, but I think I will see some improvement.

Ever since the engine rebuild I haven't been 100% happy with the prado, always thought there was something not quite right, but could never figure out what. Until now, the SCV has made it run like it should.

[cfryback Find all posts View Profile Close cfryback]

Does anyone here have any suggestions for undoing the engine side hex nut?

Also what are the two shaft looking items with the kit? Where do they go?

[gxl_d4d Advanced Member Find all posts View Profile Close gxl_d4d]

What shaft looking item? My kit just came with the SCV in bubble wrap.

I use a normal L-shaped allen key to remove both bolts. Crack the bolt loose then use your inject finger to find it out a third turn at a time.

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

1/4 drive does the job nicely.

[ToeEdge Junior Member Find all posts View Profile Close ToeEdge]

Mine has been getting rattly on cold mornings for the past few months. I had Baileys injectors fitted at 172111 km and have only done 36000km on them, so was surprised when I started to hear the rattle coming on again. Had a word to Baileys and they advised it may be the Suction Control Valve (SCV). So, booted up the Techstream and here are the cold and hot readings.
Number 1 and number 3 can be as bad as +2.2 and -2.4 respectively, but they come good when hot (see attachments).
The Target Common Rail Pressure varies from 29000 kPa up to 37000 kPA but goes rock steady on 35000 kPA when hot. I'm not convinced it is the SCV.
But, since it's a pretty easy part to replace and seeing Amayama have them priced at 181.57 AUD.

I'm no mechanic, but I'm thinking the SCV fluctuates when cold, because it is trying to control erratic fuel flow through the cold injectors ??

Anyway, once I receive the new SCV, I'll get some techstream readings before and after it is fitted and post them here. Will also be interesting if it rectifies the cold rattle.

[ToeEdge Junior Member Find all posts View Profile Close ToeEdge]

Got a shiny new SCV. Will be installing over the weekend hopefully...

[Scruffy Member Find all posts View Profile Close Scruffy]

How much was the SCV from Baileys please?