RB SPECIALISTS... "HELP ME PLEASE"

[shally2186]

Sounds like you have a hard road ahead of you......your car is not even close to being drivable by the sounds of it.

SAFC's are ok for very minimal adjustments..and only paired with a good tune on the ecu,no matter what you set the safc for it will not correct your injector lag and k values correctly and will shove timing down the throat of your motor.

So that being said like others I believe you have one of a few things going on......you have a vacum leak,you have the mafs wire unhooked thus not giving the ecu it's MAFS voltage reading thus not allowing the injectors to fire properly,however if your ecu is not tuned for 440cc injectors then that is somewhat of a moot point as well seeing is how even with the AFM wire hooked up it will still not run properly.Also check the resistence of your injectors and see if they are high or low impedance...if they are low ensure you have a resistor pack wired in as you will fry your ecu without one.

Buy yourself a wideband,a Carl H ecu tune,and pay him to redo your harness so you can ensure thats all done right.And for the love of god do not run your car till you get this stuff fixed up.Check your injector resistence,then pull your CAS to ensure you have firing coils and injectors,and get that ecu and wiring fixed up.

how do i go about the resistance issues???

[240z4u]

Your not hitting fuel cut.

One of two things is happening, you are either going SO rich that its misfiring or the ecu is in limp mode because your maf wires are cut.

There is no reason to do anything else until you get the wires that were cut for the afc sorted.

Also, it may be wise to drop factory injectors back in until you get the situation under control.

Evan

[shally2186]

i tried playin w my MAF before and if i unplugged it then the car wouldnt start..so if my wires were cut wouldnt my car not start??how do i go about gettin my car outta limp mode if it is in that state??

[BlAcK95sE]

1. fix the cut wires!2. look at the tag on your maf and see if it is a n62.

If it has bigger injectors, he may have upgraded the MAF also. which is the number 1 reason people buy the safc to change the input/output....

[shally2186]

hopefully fixing up all my wires sunday night...i was told that this is the 3rd MAF that was put on this car..pretty sur they said its one for a 300zx...

[Darius]

Seriously! Your car is so ghetto rigged right now that you just need to sit down and tackle one issue at a time.

1) Without a programmable ECU, the Z32 MAF will work up until around 4-5k rpms when the engine starts to run pig rich on a stock ECU.

2) Sort your wiring.

3) Verify that your injectors are high impedence. If not, then you will need to install a resistor pack.

4) Fix your exhaust leak.

If you complete all of these things and the car still runs like poo, THEN get back to us.

[shally2186]

ok..ill check everything 2marrow..thanks alot for all the help guys