ECU Diagnostic

NegativeGain · Feb 21st, 2006, 08:33 PM

Do you need a a machine to do a ecu diagnostic or is everything already connected to the car?I dont want to sound to stupid but what is it?

Big-Reese · Feb 21st, 2006, 09:50 PM

Quote:

Originally Posted by NegativeGain

Do you need a a machine to do a ecu diagnostic or is everything already connected to the car?I dont want to sound to stupid but what is it?

Well you can either get a laptop and get the software and hook it up on your computer. Or take it to a shop and they will put a computer to it.

asleepz · Feb 22nd, 2006, 07:17 AM

Just take it to autozone or any of those kinds of stores. Won't they run a check for free?

Big-Reese · Feb 22nd, 2006, 08:47 AM

Quote:

Originally Posted by asleepz

Just take it to autozone or any of those kinds of stores. Won't they run a check for free?

Ya advance does I think.

chick_racerrb25 · Feb 22nd, 2006, 08:51 AM

Quote:

Originally Posted by NegativeGain

Do you need a a machine to do a ecu diagnostic or is everything already connected to the car?I dont want to sound to stupid but what is it?

My husband has a dyno and he can do stuff like that but I also know on all the cars I have owned if you pull out the computer it will flash codes you need to find a web site that will tell you what these codes mean some cars the check engine like is what flashes. Some times it a loose wire or something minor that broke. I live in utah to bad you live kinda far or I would totally tell you to come down an we could hook it up tp our machine!!!1
Good luck!

d_baldguy_24 · Feb 22nd, 2006, 10:06 AM

i can't believe that nobody had thrown this up yet:

http://www.ttzd.com/izcctech.html

it's the 9th one down, "ECU Diagnostics"

NegativeGain · Feb 22nd, 2006, 04:27 PM

Quote:

Originally Posted by d_baldguy_24

i can't believe that nobody had thrown this up yet:

http://www.ttzd.com/izcctech.html

it's the 9th one down, "ECU Diagnostics"

so it should help with my check engine light that comes on every once in a while?I mean i did so much repair work so far thats really the last real major thing besides the timing chain. at least i think that what he said

d_baldguy_24 · Feb 22nd, 2006, 04:34 PM

it will help you identify what the cause could be.

"7. Read the codes from the flashing LED on the side of the ECU (or the check engine light). Long flash is first digit, short flash is 2nd digit, the codes are..."

they even give you an indication of what "Will cause the Check Engine light to come on under normal (MODE I) operating conditions."

NegativeGain · Feb 22nd, 2006, 09:50 PM

man I never heard of a car having its own diagostic tool coming standard on a car

d_baldguy_24 · Feb 23rd, 2006, 07:55 AM

pretty handy, eh?

NegativeGain · Feb 23rd, 2006, 05:08 PM

Quote:

Originally Posted by d_baldguy_24

pretty handy, eh?

yep but i guess for like a $30,000 car it better have something special

NegativeGain · Mar 6th, 2006, 06:21 AM

ok so I did the ECU diagnostic the number I got was a 51. So does anyone know what i should do next?

51: Injector Circuit. Injector Circuit is open . Harness and connector injectors

And should that cause the engine to sound diffferent? And also could this be the result of me putting the injector cleaner in it a While back?

**Spongerider** · Mar 6th, 2006, 09:53 AM

Your injector is bad. You need to replace it. Do you know which one is bad?

NegativeGain · Mar 7th, 2006, 12:02 AM

That sucks ass nope dont know which one it is. I guess the Shop I go to should be able to figure it out.Hope its not more the all of them

d_baldguy_24 · Mar 7th, 2006, 05:48 AM

i don't know the actual process, but i know that you can use an ohm meter to test them.

this should give you some help in knowing what your readings should be.

http://www.300zxclub.com/showthread....tor+resistance

good luck.