my car has every problem under the book lol need help

[twindragonn]

ok i am a newb to this i have a 1990 nissan 240sx with a ka24e (sohc i believe) . i purchased the car knowing that it had issues but i figured it wouldnt be this hard .

my problems consist of a code i can not find which is a 23 and a code 45 which is a leaky inj. thos eare the codes i get when i check the ecu.

i replaced the maf sensor and the inj seals to finally get it to run a lil better but still not up to snuff and is still smelling like it is running rich........ i adjusted the iacv and the distrbutor to get it to run around 900-1000 but it is still has smoke plumen out the back end and i tried to drive it today and had no throttle response can you help


Modified by twindragonn at 7:48 PM 7/17/2009

[n240sxfnatic]

it might be a knock code sending ur ecu into limp mode.

[twindragonn]

hmmmmmm how would i go about finding that out and i am wondering if the kid that put this together might have used a dohc ecu do you think that that could be an issue at all and if so how do i tell the ecu apart

thanks for your insight man much appreciate it

[Wc240]

search on nico. theres a page with all the ecu numbers on it. that will tell you what one you have

[twindragonn]

i have a bbok right here at my hands that gives me the codes but there is no code 23 for an 89-92 240sx thank though man

[twindragonn]

does anyone have any ideas or help i would greatly appreciate it

[Wc240]

didnt mean the codes, ment the ecu identification numbersread the codes again. you sure its not 32?

[twindragonn]

ow gotcha my bad wheres it at on here

[Wc240]

its in one of the stickies somewhere.did you try the code again?

[twindragonn]

a11-b15 g11 ok thats the code that is on my ecu is that a sohc or dohc cus i couldnt find that sticky you were talking about thank you again

[Wc240]

89 24sx manualfederal emissions standardsKA24E 8.6:1 compression

once again i know it may sound stupid but read the section about hou to pull codes again and check the code. pretty sure its 32 not 23

[Vegascorbin]

it might be a knock code sending ur ecu into limp mode.

FYI the SOHC does not have a knock sensor. Sounds crazy but true.

[twindragonn]

i went back through and check my codes it flashes a one first dk if thats to intialize it than a 2 than a 3 than 4 and finally a 5 there is no code for a my car that is a 32 nor is there a one but thats what i have found on the ecu side of things thanks again for your insight

[Wc240]

I KNOW EXACTLY WHATS WRONG!!!!

when your turn the screw, it will flash a one, that is the MODE. there are 5 modes(1,2,3,4,5) when your in the right mode(correct number of flashes) you turn the screw back counter clock wise. in your case, your trying to use the Self diagnostics mode,mode 3. so, turn key on, turn the screw clockwise. when the light flashes 3 times, turn it fully counter clockwise, your now IN mode 3."NOTE- red led is the tens place, green is the ones place."try this asap ang get back. to you and anyone reading this, this is an example of why i cant stress enough to READ the FSM! dont just glance over it, read it and make sure you understand it exactly.

[twindragonn]

ok man so i did it the way you told me to do it and i got a 55 which is no malfunction the first time than after tht i got a 13 the second time which is an engine temp circuit and i did the hole and i did this a couple timesand that was the only code it was pulling