Sr too much fuel problem

[stevecorrado88]

S13 sr with a gt3071r 740cc injectors, z32 maf tuned by Efispecialist. I drove the car yesterday and it ran perfect nor today I tried starting it and it's just dumping fuel and my afr is at 10 and the the spark plugs meet fouling out. What should I try and do ??? I believe the tune shit the bed.

[fullthrottle]

Leaky injector o ring? Coolant temp sensor? Both are more likely than a tune "going bad"

[stevecorrado88]

Ok the for the temp sensor if it's reading normal ideal temp that means it works right???

[91s13ForMeeh]

Test your injectors. Do they meet spec. I've been burning through fuel like crazy and I checked my injectors today and sure enough 3 of them fall out of specifications.

[camaro379ss]

^ I agree check the injectors b4 you attack the tune. Always check whats easiest first.

[stevecorrado88]

I failed to mention that the tune once shit the bed after I hooked up a safc and the same symtoms are happening. Now what is the proper way of testing injectors? And I will swap out temp sensor soon but the temp sensor seemed like it was working fine.

[camaro379ss]

a couple ways you can do it is 1. check the resistance (generally between 10 -18 ohms if I remember correctly, but really just make sure the are close to one another) and 2. startup the car and listen through a screwdriver, car stethoscope or fuel injector probe device and make sure they all have the same rhythmic ticking sound.


Even if the tune has crapped out before its gonna be much easier to eliminate this really quick.

[stevecorrado88]

Ok will do I'll check the ohms

[91s13ForMeeh]

Yeah do a resistance check if you dont have a scanner to watch pulse widths. for a ka24de the spec is no more than 11 ohms. However it might be diffrent from sr.

[stevecorrado88]

I'm trying to do a flash code check but I can't get it to light up

[stevecorrado88]

Ok so its 11.1 ohms all around and I have a e5 ecu and I guess they dont come with LEDs lol so I can't check it and I don't no if it's wired to my dash light

[91s13ForMeeh]

Ok so its 11.1 ohms all around and I have a e5 ecu and I guess they dont come with LEDs lol so I can't check it and I don't no if it's wired to my dash light

Wow it's really 11.1 all the way around? KA specs are no more than 11 I believe. My cyl1 is 10.5, cyl2 is 11.7, cyl3 11.8 and cyl 4 was 11.9-12. I read an article saying anything out of spec needs to be replaced.

[stevecorrado88]

Yeah it was All 11.1 so I'm guessing that is good that they are all the same