I have a couple questions about injectors:

1) What is the difference between the front 4 and rear 4 injectors?
Denso 23209-50030 and Denso 23209-50050?

2) New or Rebuilt? Where to buy? How much ?

3) What is your experience in replacing Injectors?

4) Are people seeing more issues in early 2000 fuel systems related to Ethanol E10 fuels?

 

This is a follow-up to my previous post. Here is what I experienced:

1) What is the difference between the front 4 and rear 4 injectors?
Denso 23209-50030 and Denso 23209-50050?

A1=> The front 4 and rear f4 fuel injectors on the Lexus SC430 are the same. The only difference is that the Rear 4 have an insulator around them. They are all Denso 23209-50030 parts. All you have to do is remove the insulator from the old fuel injector and move it to the new ones.

2) New or Rebuilt? Where to buy? How much ?
A2=> I went with Rebuilt injectors, paid about $260 for the set of 8 and all worked really well.

3) What is your experience in replacing Injectors?
A3=> From a novice eye, it was a pretty simple job to do. Like anything else, just take your time.

4) Are people seeing more issues in early 2000 fuel systems related to Ethanol E10 fuels?
A4=> After inspecting the old injectors, my opinion is that age has some to do with this, but in my case the newer gas and lack of daily driving caused this issue. I could really use some good insight into fuel stabilization, best products etc..

 

Justin,

You had your two questions above posted in the GS for sale classified forums at the end of a thread from 2005. I've moved them to their own thread and guessed that they're SC430 related.

 

Here in Iowa we've been using E10 for years and years and years (big price break). I run my cars to 200K miles typically and solely on a diet of E10 (less so for the SC430 because it needs a little higher octane). I've never had a fuel-related part failure that I know of, and I've never had an injector problem.

 

I didn''t really want to revive this thread but I can't seem to find the answer to this... I'm in a GS430 and I have 2 bad injectors. I'm going to replace all 8 just because I rather have all 8 new than just 2.

Anyways, does anyone know if the insulators are required on the back 4 injectors? Or can I do without? The injectors I'm looking at on eBay are all remanufactured Denso 23209-50030 injectors.

https://www.ebay.com/itm/Motor-Man-L...75.c3#viTabs_0

 

 

Yeah, I'll eventually post up a new thread in the 2GS section, but i figured I'd bump here since the thread/quote already exists and it's the same engine platform.