G50 Aftermarket Injector Alternative!!??

[AlabamaDan]

So Heath,

Since we're using you as the guinnea pig, how's it going? You've been running these injectors for what 3 months now. What's the verdict? MPG? Power?

Is this the new official NICO recommendation for injectors?

[qship96]

I would think 3 months is not quite out of the woods yet regarding compatability with ethanol.

My 96Q original injectors have now been using ethanol laced fuel exclusivly for the last 51 months and about 85,000- 90,000 miles.....so far so good, maybe nissan altered design of injectors along the line?

[elwesso]

Until i see definite proof that these injectors are better than OEM ill probably still recommend the reconditioned ones from deatschwerks. About half the price with the same warranty

also, deatschwerks said they see about 1% of any phase 2 injector come back within the warranty period.

[qship96]

Reconditioned just means "cleaned" old used injector tested to still be functioning....electrical windings and components are still old and potentially getting tired? Not sure I see the value in purchasing these, especially considering the labor required to R & R.

[Trumpkin]

If come backs are that low(1%) they must be doing more to them?

[Q451990]

There's really no great option here... buy reconditioned used ones, unreconditioned used ones, or new ones - all with the very real possibility that they will fail from ethanol exposure. Or buy aftermarket ones that aren't proven either, but claim to be ok with ethanol but don't test quite as well. There are tradeoffs to all of the options...

Heath

[KD]

HI gang,

Been a long time since I've posted..But I'm back..For the record I have a 93Q with this injector issue 142k (have done the dealership testing)

I have searched, found and read this entire post..Damn good !!

I have two questions..so far

1) Heath - How are those Standard/BWD Injectors holdin up..? It's been about a year now...

2) Elwesso - I looked at Deatchworks injectors..was wondering if you or anyone that you maybe aware of have tried these injectors..with good results?

3) Has ANYONE else installed Phase II. With good results.

Q45Tech where are you I've read you have been doing more installs?

Looking into going Phase II as it seems there maybe a little better compatibility and maybe slightly better longevity with E10..??

Not sure..need to hear a liitle more from the Q family

So all input/feedback on this topic would be great, we have all lived with this for too long.

Thanks Q Family...!!

KD

[Q45tech]

Well the 4 brand new oem 90-93 injectors installed in odd bank are still reading no change after 16 months.

The even bank only has 3 months on USED rail with used 17 year old injectors with 134,000 miles [from chain guide destroyed engine].

I had some bad hiccups last week which turned out to be the 20 year old harness and corrosion.

In fact we haven't had a failure of any oem injectors we changed over past 17 months, most of which have been exposed to E10 for 19 months +-.

I have been changing my fuel filter every 90 days and each time it is full of dirt and interiors of hoses eaten away by E10.

[KD]

Q45Tech -

That's not too bad. 4 originals with a 17yr life and still going. So one of your secrets is constant replacement of the fuel filter due to E10. (note taken)

I'm curious to know what's your take is on going to Phase II injectors. pros/cons ? Are these PII injectors any better for a 93 ?

[yodawill2000]

Good to know about the 90 day fuel filter.All we can get here is E10.But I will be relocating it !!!Still have scars from the last time.Tight spot on the side of a J engine bay.

[Q451990]

1) Heath - How are those Standard/BWD Injectors holdin up..? It's been about a year now...

A little over a year, but only about 5000 miles. I need to get her out more. But they're doing fine. Ohm tested them in July and everything was spot on...

Heath

[Q45tech]

We save all removed injectors and keep the piles in separate boxes, so far over 18 months the boxes are ~ equal but we have a few more 90-93 than 94-96 customers based on gross unit sales. So it appears than they are roughly the same as to failure rate.

A few hundred Georgia Q45 is not enough to categorize the entire US.

[lino]

I have been changing my fuel filter every 90 days and each time it is full of dirt and interiors of hoses eaten away by E10.

My fuel filters come out very clean every time. I have been told that our high grade gas doesn't have ethanol in our market.

[qship96]

We have had ethanol in our fuel since about 2004-2005.....never had any issues with injectors or fuel filters, which I replace every 25,000-30,000 miles-I have driven the Q at least 100,000 miles on ethanol laced fuel with NO issues.

Ethanol gets blamed for any fuel system related issues around here.

[Q45tech]

It's not really so much the ethanol as it is the water that could be in it and the redesigned gasoline to allow it to mix better why I usually just say E10.

[Q45tech]

The marketing brand of the fuel is usually immaterial! All that counts is which refinery made it and how long it sat unused from refinery to your tank.

The tiny amount of additives and dyes added to generic gasoline to NAME THE PRODUCT is not really enough to do much good or bad.

The generic 95% Ethanol contains 4.5% gasoline [local junk gasoline blended in before it leaves the corn plant] to denature it along with a few byproducts of distillation.

Northeast including Maryland usually get gasoline from PA and NJ refineries where as South gets them from Lo and Texas.

Too many people don't have a clue about the chemistry of gasoline and actually pay attention to marketing lies and junk.

[Q45tech]

Notice the stickers " may contain up to 10% ethanol" doesn't mean every fillup is the same. It doesn't mean that there is any ethanol in gasoline TODAY, THIS WEEK or THIS MONTH.

Bulk ethanol prices depend on transport from corn plants and many time gasoline is less expensive than ethanol so you never know without testing how much ethanol you get.

The guys at the tankfarm tell me if they run low they cut the mixture so that every tanker gets some at least 1% or E1. When ethanol is cheaper and plentiful than gasoline sometime the make E14 or 14% ethanol. Assuming that it will dilute with residuals in station and your tank.

Today ethanol cost 2.334 per gallon in Georgia and Retail Gasoline is 2.47 [with 50 cents of taxes] so gasoline is 1.98 [without] guess which they use more of to save 35 cents or 3.5 cents per gallon.

[Q45tech]

Check your states spot ethanol price and calculate what is happening to your blend.

Remember blending is done as the tanker truck is being filled. Just a few hours before it is dumped into service station tanks.

http://www.ethanolmarket.com/fuelethanol.html

[Q451990]

Very interesting! If I had more time, and historical spot price data, it would be fun to make a graph of my MPGs and the likely content of ethanol.

Heath

[Haitian_King]

So. I know this is a serious topic resurrection, but I just cracked 120k and I've already replaced 1 injector. Planning on doing all 8 but I'm still unsure of the route to take. I was considering the DW route and getting everything, but I don't want to make the wrong decision.

[Infinitiguy19]

It seems that my number 8 injector is going bad at 16-17 ohms (tested with a Blue Point/Snap On multi-meter and a Fluke multi-meter.) I have a few spare used injectors that are grey with a white dot one them. I believe they are OEM from a 1991 Q45. I also have one BWD fuel injector Phase 1 with a RIN-1069 number I think.

Whats weird is that the rest of the injectors all ohmed high when tested through fuel injector sub harness. And when I say high I mean around 14 ohms. When I tested number 8 fuel injector directly it still registered at 15-16 ohms.

Can I throw that BWD injector in my car or do I have to buy 7 more of them to match?

I believe injectors go for $160.26 at the cheapest from the dealer. I don't mind spending that if I can get six years or more out of it.

[Q451990]

OEM from that timeframe would be a dark greenish color. I wouldn't get too concerned about 16-17 ohms. Check it when it's hot though... the ohm reading on a failing one tends to go way up while hot and then come down some when they cool off. Ideally, yes - you'd buy all eight new OEM injectors.

In the real world - I'd just toss the nicest looking one you have on hand in there and see what happens. At 20 years and 165k in service, they're not going to be perfectly flow matched anyway. My theory on the dot colors is that the factory flow matched the injectors to an even tighter variance when they were new. Even if you found another one with the same dot color as the ones in your car - use and wear and tear would still make that marking irrelevant at this point.

Heath

[Infinitiguy19]

I had all eight replaced about seven years ago or so along with the fuel injector sub harness and a few under plenum hoses.

Thanks for clarifying the dot on the injectors though!

[OwnerCS]

Did you replace eight years ago with Phase I or Phase II injectors? Have you looked into Standard Motor Products (BWD) brand for the black dots? I see the going price for SMP/BWD black dots is $128.89.