|
|
Post by turbo2300 on Nov 10, 2009 8:16:38 GMT -5
All of these issues would seem to indicate a major wiring issue, particularly one with the signal return wires (ground) for the sensors and/or the vam wires. ohh.. great.. |
|
|
|
Post by Stinger on Nov 10, 2009 14:47:40 GMT -5
Not a big deal, just need to use a voltmeter to verify the grounds are grounded, 5v reference wires are 5v, both are in correct locations, vat is in correct location, etc.
|
|
|
|
Post by turbo2300 on Nov 10, 2009 15:04:50 GMT -5
oh ok. where do i find diagrams for reference on which wires are waht
|
|
|
|
Post by Stinger on Nov 10, 2009 16:31:18 GMT -5
What car? What ecu?
|
|
|
|
Post by turbo2300 on Nov 10, 2009 20:52:23 GMT -5
its in an 89 notch lx, LA3 ecu
i did some poking around, and heres what i found. all are key on, engine off
TPS harness:
black wire to green wire= .94v
black wire to orange wire= 5.12v
VAM harness: (i assumed black with white was ground)
ground to orange/white= 5.09v
ground to green/purple= .28v
ground to gray/black= .25v
|
|
|
|
Post by Stinger on Nov 10, 2009 21:50:32 GMT -5
|
|
|
|
Post by turbo2300 on Nov 12, 2009 9:52:49 GMT -5
well i played around with it, and figured it out! it ended up being a wire i thought you had to cut, and when i spliced the half i cut off wiht the wire to the vam, it runs great off boost! even idles when its cold now. the only thing is now i gotta check codes cause instead of a random check engine light, its always on now. no biggie  |
|
|
|
Post by Stinger on Nov 12, 2009 10:57:28 GMT -5
Which wire was it?
|
|
|
|
Post by turbo2300 on Nov 12, 2009 10:59:34 GMT -5
it was yellow if i recall correctly, ill run out in the lot in a few and check..
also, i just found out a friend of mine has the moats burner, is that J3 chip a good option??
|
|
|
|
Post by turbo2300 on Nov 12, 2009 11:04:28 GMT -5
yellow/green wire
oh and thanks for the wiring diagrams and stuff. i tested all the connectors at the computer like it said, and they all checked out. then i found that wire problem. it was actually a "just for fun, lets hook this wire back up" and poof. mint.
|
|
|
|
Post by turbo2300 on Nov 13, 2009 9:42:35 GMT -5
had a minor boost controller issue, and it seems these motors dont like a spike over 25psi (where my guage stops) i think it ran out of fuel that high.. oops
|
|
|
|
Post by Stinger on Nov 13, 2009 13:22:11 GMT -5
I don't know of any engine that likes spikes anywhere near 25psi when they don't have enough injector to support it |
|
|
|
Post by turbo2300 on Nov 13, 2009 13:27:13 GMT -5
how many psi can these injectors keep up with?
it felt like it went into a limp mode, i had to shut it off and restart it twice
|
|
|
|
Post by Stinger on Nov 14, 2009 1:21:20 GMT -5
PSI has nothing to do with it as that will vary greatly depending on mods, condition of of fuel system, etc. Generally they can support about 230rwhp at stock fuel pressure and about 300rwhp with 55psi base pressure or so.
|
|
|
|
Post by turbo2300 on Nov 14, 2009 22:41:20 GMT -5
im running 15psi boost with about 35psi fuel, seems to like that best. gonna dyno it soon, get an a/f reading so i know where i stand on that.
|
|
