injector question

[ecoman]

i checked resistance on my inlectors warm have following readings 4 read between 16.8 and 17.0 and 4 read 4.0 to 7.0 what is the spec? will this cause a miss at idle and under slight load? thank you for any help

 

[tiedt]

I can't remeber exactly whast everyone has been saying, but I know they all should be pretty close. I think between 12-16 ohms sounds about right for the range.....

 

[Ken]

I can't seem to find anything that specifically addresses the resisitance issue, but I did find this, which could help a few people decide on the correct injectors:

FUEL INJECTORS

There are a number of Fuel Injectors on the market today. The following injectors have been furnished on GM OEM systems: Lucas Bosch, Rochestor and Multec. The prices vary considerably and performance differences are hard to detect. Basically they are sized for application. The 5.0L injector is sized to deliver approximately 4.05 milligrams of fuel with a 2.5 millisecond pulse or 18.13 lbs per hr at approximately 36 PSI. The 5.7L injector is sized to deliver approximately 4.83 milligrams of fuel with a 2.5 millisecond pulse or 23.92 lbs per hr at approximately 43.5 PSI. This information is typical for all manufacturers and flowrates will vary slightly even between identicle injectors. A wide variety of flow rates are available to include 19lb/hr, 24lb/hr,30lb/hr, 36 lb/hr. These are all 16.2 Ohms and will work well with all GM TPI's Rochestor injectors are presently furnished for the 90-92 GM 5.7L engine. It has an all metal nozzle and performs well. Bosch injectors an excellent choice at approx $37.00 to$50.00 each.

While there are significant differences between the TPI and LT1 induction systems and computers, the injectors are essentially the same. Sequential port injectors and batch fired injectors are sized in the same manner.

If I turn up anything more, I'll be sure to post it here.

 

[bill5674]

don`t want to hijack this thread but......little while back had slight miss at mid throttle.just a little annoying ,was still getting 25+on highway. till one nite car went from 65 to idle no throttle limped to my shopput on scanner,no codes. car running on one /two clyinders turns out to be bad injectors . came on suddenly.just though i`d pass long my 2 cents on injectors

 

[ecoman]

thank you all for your help. will be replacing all injectors,will see if this cures one off many problems.