my gas mileage has been really crapy, so i checked out the injectors with a multimeter and i need to know if i should replace them. they are the $99 LS1 25# injectors from SLP. they tested as follows

12.1
12.0
12.4
12.4
12.3
12.0
12.2
12.4

shouldnt they be in the mid 16 range? i didnt know if the LS1's had a difference resistance than other injectors.

 

Those are good readings, if they were below 10 ohms they would be bad. The earlier bosh injectors from 85 to 88 had the high resitance of 16 ohms. After 89 when then swicthed to the Rochestor designed injectors they use the resitance of 12 ohms even on the ones they make today.

 

You will probably need to get a scanner and see what is going on with the fueling. What is the AFR at WOT and what is the part throotle BLMs?

Have you done a complete tune-up laterly? This would be more than just changing plugs and wires. I am not saying that any of this would help significantly, but you can start with basics, and set the minimum air and set the static timing (just to make sure these things are right on spec).

BTW: once we make alot of perfprmance changes to our cars like you have, the fuel mileage suffers significantly. I am getting maybe 13 MPG on my 395.

 

Sorry, this was to be placed under the fuel mileage post. I swear a put it there, I dont know how this happened. Maybe, a brain fade.

 

so the new style injector all have low resistance? i wasnt aware of that. i thought they were all supposed to be 16 or so.

is there a place that i can take them to and have them flow checked? i live in So Cal

 

I've used Rich at www.cruizinperformance.com, he has a good reputation. I believe that that is the correct web site.