Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk

Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 06-16-2010, 09:01 AM   #1
ATLspeed
Zilvia Addict
 
ATLspeed's Avatar
 
Join Date: Jan 2007
Location: Eden, MD, USA
Age: 38
Posts: 921
Trader Rating: (14)
ATLspeed is a splendid one to beholdATLspeed is a splendid one to beholdATLspeed is a splendid one to beholdATLspeed is a splendid one to beholdATLspeed is a splendid one to beholdATLspeed is a splendid one to beholdATLspeed is a splendid one to beholdATLspeed is a splendid one to beholdATLspeed is a splendid one to beholdATLspeed is a splendid one to beholdATLspeed is a splendid one to behold
Feedback Score: 14 reviews
Running DUMB rich...need suggestions

UPDATED
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ka24de built bottom
E-Mance Tune (never had a prob so ppl dont start)
370cc (now running 550cc)
GTi-R t28/ with s14 t28 comp housing (12psi)
walbro fuel pump
FMIC
3" Turbo Back
SAFC II

Ok, So for some reason my car is now running dumb rich....i mean like 10 afr through the whole rpm range. The idle is choppy from running rich i suppose and at times the idle will be smooth but still at 10 afr, I had to use my SAFC and changed the settings to -10/-20 to get it to drive safely up and down the road to see how it runs.!?!?

This is random, all i did was switch out my solid motor mounts to stock and then wanted to go for a drive and its running rich....ANY INPUT/SUGGESTIONS ARE APPRECIATED

Things I've done so far:
- Checked for boost leaks, took bumper off and inspected intercooler, piping, and couplers for defects.
- Timing is dead on along with cam timing
- Switched to stock ecu and still the same thing.
- Checked all grounds
- Checked z32 MAF wiring, even put my stock MAF back on, changed settings with SAFC and still the same thing
- Put in new spark plugs and still did the same thing
- Checked for leaky injectors; ie - checked o-rings and pulled fuel rail and turned key to ON
- Replaced Coolant Temp Sensor (New)
- New injectors
- Adjustable Fuel Pressure Regulator (afpr)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*Narrowed it down to being electical...ECU should go into "fail-safe" mode but doesnt. ie; disconnecting the maf the car will not rev above 2.5k or 3k.....
* Popped open my ecu and found that pin 17 (maf) is fried on the board. But switching back to a stock one didnt make much of a difference either...hmmmm..more electrical gremlins





__________________
93 s13 Vert - 2jz/cd009 -- parted/sold
95 Supra Turbo

Last edited by ATLspeed; 06-30-2010 at 09:26 PM..
ATLspeed is offline   Reply With Quote
Sponsored Links
 

Bookmarks



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 10:53 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
vB.Sponsors
Copyright ? 1998 - 2022, Zilvia.net