joel91

How can u tell if the oil injection system is working right??? I haven't notice much of a drop in the level of oil on the dipstick and im coming up to almost 2,000 miles into an oil change?? Is this normal??? Or should it be injecting more on my 91/na??

WAYNE88N/A

There are test procedures in both the FSM and Haynes manuals for ops checking the MOP system. Basically you can rig up a couple of test lines to the pump's output channels and measure the flow quantities....

joel91

well if it wasn't injecting oil then my motor prob would of been toast by now right??

MrSparkle

i know someone who went about 2 weeks without their oil injection system before their motor went to crap.

joel91

oh man that sucks...it's just i have a first gen. too, and my 91 doesn't seem to burn near as much as the 83'

Mint87RX7

really it depends on how hard you drive it, they inject different amounts depending on rpm. if you dont rip around town all day you wont use very much oil, but i would still check the omp

joel91

isn't that a circuit that is controlled by the computer??? so if there is a prob the computer will set a code??

Mint87RX7

on an s5 i think the only time the omp will throw a code is if its disconnected, thats why people leave it dangling by the plug when they premix

joel91

oh so the computer doesn't actually meter the oil??

Mint87RX7

im not exactly sure how that part works, i was just trying to explain why you may not use as much oil as other cars

joel91

ok...well ill prob check the flow rate just to make sure...thanks for the help

SirCygnus

iTrader: (1)

the way its meters is a bar by the tb, atleast on the s4 anyways. the mor throtle you use, the more oil that is injected. the 25 is mechanichal and i have no idea how that works. probobly bt the tps voltage or some bull honkie. o well, just run premix. one way you can tell is get an oil change, and see if the clean oil is runing throigh the lines.


i would just go premix dude.,

joel91

yea...it probably would be safer to do a pre mix... but ill check to see if i can see if clean oil runs through tomorrow when i do my oil change...

Mint87RX7

i just switched to premix because when doing an s5 intake swap i broke the oil lines and it was easier to just block it off instead of find new lines, now i dont have to worry about it