2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

fuel injector flooding

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Old Mar 15, 2006 | 10:15 AM
  #1  
Gasso's Avatar
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From: KS
fuel injector flooding

I just recently bought a 1990 convertible and was wondering a few things about replacing the fuel injectors. It has been flooding ever since I got it so I assume i have leaky injectors. Ive read that the stock ones are 460cc and after searching online for replacements i havent been able to find any 460 ones. Also im wondering if this flooding can be caused by anything else. It usually happens when i leave it overnight but it has one time when its hot. Im just curious as to what everyone usually do for replacing them. Any other tips for a new rx7 owner are welcome as well
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Old Mar 15, 2006 | 10:22 AM
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From: San Antonio TX
If you aren't upgrading your injectors, you are probably just as well off to get your old ones cleaned. You should be able to find a local shop to do the job. If not, check out Cruzin Performance, where you can get them cleaned and flow-tested for $12 each, plus shipping.

Edit: http://www.cruzinperformance.com/
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Old Mar 15, 2006 | 10:36 AM
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Make sure to do a compression test as well. It's as common for flooding to be caused by leaky injectors as it is low compression.

Most communities have a local injection shop that will do the cleaning for you. Generally about $20 per injector or so. Check the Yellow Pages.
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Old Mar 15, 2006 | 10:03 PM
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From: KS
i dont think i will be getting enough power anytime soon for an upgrade of the injectors. does cleaning work for the most part? just curious...how long will it take to have to actually replace injectors?

also thanks for the tips!!
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Old Mar 15, 2006 | 10:57 PM
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This might help.

http://www.mazdatrix.com/c-bleed.htm
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Old Mar 16, 2006 | 07:35 AM
  #6  
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From: San Antonio TX
Originally Posted by Gasso
i dont think i will be getting enough power anytime soon for an upgrade of the injectors. does cleaning work for the most part? just curious...how long will it take to have to actually replace injectors?

also thanks for the tips!!
According to those who do the work, cleaning corrects leakage from the pintle/needle valve about 95% of the time.

Check out the Cruzin Performance link I provided. Somewhere on that site it shows the process that he uses to clean and check the injectors. Even if the pictures are "staged", it should still give you some degree of confidence in the process. He also provides every customer the before and after test results for his injectors.

I forgot to mention in my first post that the $12 price includes all new rubber pieces, and a new pintle cap for each injector, so it's a real bargain.

I'm not trying to lock you in on Cruzin Performance. You can probably get the same service locally. Or, WitchHunter Performance ( info@witchhunter.com ) is another mail order source that can fix you up.
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Old Mar 17, 2006 | 03:36 PM
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Originally Posted by DoriFCto
That is a band-aid, not a fix.

Spend the money to get the injector cleaned instead of wasting it.
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Old Mar 17, 2006 | 03:59 PM
  #8  
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tom port.. AKA streetport
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From: ludlow, pa
http://witchhunter.com/
this is who i used...very good people and fast service..they shipped them out the same day the got them...although if you can find a local shop it would be faster..it took about a week and a half because of shipping...
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Old Mar 17, 2006 | 04:01 PM
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tom port.. AKA streetport
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From: ludlow, pa
Originally Posted by DoriFCto
52.50 !!! holy...you can get the injectors cleaned and be practically brand new for that price...
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