1k resistor, matter which way it goes?
 

yeah having some problems with my ecu (first time, gotta learn sometime!) quick question. does it matter which way i solder the 1k resistor?

Re: 1k resistor, matter which way it goes?
 

nope, direction does not matter with resistors

Re: 1k resistor, matter which way it goes?
 

Yup Sinner is spot on. Only diodes, some capacitors and logic chips need to be soldered in the correct orientation.

Re: 1k resistor, matter which way it goes?
 

You should hit up some of the write-ups on chipping. Your questions as of alte have been pretty basic.

Re: 1k resistor, matter which way it goes?
 

sorry for giving you something else to talk about besides who sucks dick

Re: 1k resistor, matter which way it goes?
 

Damn, I don't know which one of you is more correct. :l

Re: 1k resistor, matter which way it goes?
 

Can anyone give me some soldering advice? Ive tried chipping two p06's and neither one of them work. I can remove j1 and they work like stock. So I don't think I'm to far off. It just pisses me off soldering can't be that hard to do. I just need some basic soldering guidance. :y

Oh and Ajxr I told you a week or so ago chipping an ecu isn't as easy as you think. *L* Ive got another p06 setting here and I'm wrestling with sending it out to someone or trying one more time. I should probably take the advice I gave you and send it out. But it hurts my pride to give up and not learn for myself

Re: 1k resistor, matter which way it goes?
 

well mine works!!!!!!!!!! hahaha!

i found out its easiest to just un-solder where the eprom and hc74373 will go. for the resistor, capacitors, and j1 jumper do not un-solder the ecu! just hold them with a small pair of needle nose and press them into the solder thats on the ecu while you heat up the solder with your iron... sounds lame but worked perfect for me! i just got done with my setup 15 mins ago, once the jb cures ill be spoolin once again. ill post up some pics tomorrow night.

Re: 1k resistor, matter which way it goes?
 

Now that is something worth asking about. I would recommend just de-soldering the holes for the resistors and caps.

How do you get the socket and IC in without desoldering? :S

Re: 1k resistor, matter which way it goes?
 

i said those were the only ones i de-soldered, re-read

Re: 1k resistor, matter which way it goes?
 

I guess I can re-quote it.

You make it sound like there is another way.

Don't come around asking some dumb questions then try to tell people what the score is. ;)

Re: 1k resistor, matter which way it goes?
 

Tips on soldering can be found on the megasquirt build guide. They give a good write up on how to solder and what can go wrong.

Most likely you are getting dry joints where the solder isn't taking properly to the chip's leg or the pcb. This is probably due to a lack of heat on the joint or something similar.

I use isopropanol alcohol to clean pcb's, but any solvent cleaner will do a reasonable job (not acetone!) clean any grease from the pcb and your more like to get a successful solder joint.

You shouldn't need a soldering iron much larger then 15w for chipping.

pgmfi.org's guide to chipping assumes a level of knowledge most people don't necessarily have. Mind you, its probably better that way, there are alot of idiots in this world.

Re: 1k resistor, matter which way it goes?
 

Well I just wanted to state for the record that my ecu's actually work to!.. It was the burner I was using ------ ---- up. ---- batronixs. Burn1 FTFW

Re: 1k resistor, matter which way it goes?
 

i got down on my board witha 45w...think i burned anything up? more wattage means you get done faster....right :1 i guess it means you get to do it twice, i dont want to have to do this but one more time

Re: 1k resistor, matter which way it goes?
 

Hope you don't solder ICs directly to the board with that huge bastard. ;D

Re: 1k resistor, matter which way it goes?
 

http://www.u.arizona.edu/~girardin/t...s/IMG_1175.JPG

I love my soldering station. Turn it down for an IC, crank the bitch up for injector wires, etc. Wasn't horribly expensive either.... If your going to do ---- like this often, its a great investment. And heat guns are just pimp.

Re: 1k resistor, matter which way it goes?
 

hahaha fuuuuck looks like xenocrons getting some more of my money... :1 radio shack will too hahaha damn it man!