i removed my fuel injectors and i think either one is dead or they are real dirty inside. is there any process where i can check them to make sure they are not dead? also how can they be cleaned? what kind of products should i use? any help appreciated...

 

pull them and have them cleaned professionally... the crap that goes in your gas tank will do nothing except maybe make the issue worse.

 

Marren Injection just did mine. Here is a pic of the test results at this link:

https://www.rx7club.com/forum/showth...ghlight=marren

 

I had mine done by Cruzin Performance out of Big Rapids, MI. $11/ea for the same service as Marren & RC Engineering.

www.cruzinperformance.com

 

I used Cruzin performance from a reccomendation from Jimmyv. Let me tell you, THEY ROCK!!!! I HIGHLY recommend them.

Jarrett

 

I talked to them last year (Cruzin) and they quoted me a 2-3 week turn-around, which was unacceptable to me.

 

I got a 2 week turnaround.

 

Rich must've been swamped at the time. I got mine back in 6 working days, but I also live about 100 miles from them.

 

Ditto on Cruisin Performance. Rich was very helpful and was straight-up on the timeline. It took about 10 days for mine but it was worth it. You can't beat his price, workmanship or customer service!

 

I made a gadget for cleaning once but I would recommend getting them professionally done.
I used a 12v fuel pump, 12v transformer, a flasher relay (like used for your blinkers) and a ultrasonic jewelry cleaner.
I pumped injector cleaner through the fuel pump into the injectors backflushing them first. I removed the pintle caps and pushed and clamped the fuel line onto it, dropped it into the ultrasonic tank and kicked the pump on.
The relay cycled the injectors to flow them. Then I reversed to where they flowed normally.
It worked and I needed them quick but I will be the first to admit that I was more driven by morbid curiousity than common sense and it is not very practical.
Especially considering that the injector shops test flow and other things that this process did not.
My idea was more redneck hi-tech

 

Since your injectors are already out, check the ohms first of all. If all are within specs, you *can* clean them by using carb cleaner such as Gunk. Most people can't have them out for 2 weeks unless they have a spare.
So, you can do this and it's not as good as a pro cleaning it but it's effective nonetheless.
Use a AAA battery (it's enough to open the injectors)and an injector harness. Plug in the injector to the harness and one wire to + and one to - on the battery. The carb cleaner comes with a "straw" so you can stick it in to both ends of the injectors. When you add power to the injectors, they "click". It should sound clean and not muffled. As you spray the ends, touch the wire to the battery, and off and on and so on to open and close the injectors. After it should sound a clean "click".
Adding 12V straight from the battery to the injectors are risky as you could burn out the injectors if left on too long.

 

Shipped mine Saturday to Marren, had them back on thursday. Worth the extra cost to have a quick turn-around. I will prob give cruzin a try for an extra set that I don't need quick turn-around on. JOhn

 

quick poor mans fix for me that seemed to have worked pretty good is soaking them in rubbing alcohol for about 30 mins then backflushing them with carb cleaner...just a suggestion, but i havent had any problems with mine since

 

I called them one day a few months ago and they were so swamped that they weren't accepting any more injectors. **** happens like that. There service and customer service is outstanding, as well as the price. The local place here does $25 ea injector, RC Eng does $25 ea plus shipping each way. Cruzinperformance charges $11 plus shipping. That comes out to way cheaper for the same service.

 

I got mine cleaned by the Injector Perfector for $19.95 each. The turnaround time was like 1 day I was told. It took me longer I sent mine out the day of the blackout and I sent it 2-3 day mail. I got it back the following Wednesday. And they painted my injectors for me which I thought was cool.