My 92 cranks but will not start, and I believe its fuel related. The MFR clicks on “on” and when the check engine light turns off, but not a 3rd time when turning the key. I pulled the MFR this afternoon and its clearly been soldered by a novice in the past - very bulbous and round contacts instead of the original pointy ones from the factory. Its tough to tell if any of them are cracked around their base, because a dark brown substance surrounds all of their bases. The brown shit is also very lightly around the whole green base of the relay. Am I right in being suspicious that this could be giving me problems? Anyone know what this brown stuff is and if its trouble?
I would clean up that sloppy sodder job and redo it to see if it fixed the problem for you. The only thing it’ll cost you is your time if you already haev the tools.
I have a very basic ~$15 soldering gun (not chisel tipped) and terrible, terrible skills. Basically after I wrap 2 wires together I can plop some solder on top before wrapping them up with electrical tape. Attempting to repair it will probably only make things worse, so I’m just looking to see if its worth buying a new relay. Since I’m such a novice myself I just can’t tell if this looks like its an issue or not.
You can attempt a repair on that one - it doesn’t take a lot of skill to resolder something like that honestly. Just be patient.
You also may want to have a look at the ICM. I had similar symptoms on my old G2, and after trying to repair the MFR, I replaced the ICM and voila!
How would I clean it up- buy a solder wick and place it over the contacts and heat the wick to pull the old gunk off? I guess my biggest concern is the light brown glaze over the whole unit, touching multiple contact points, and whether there was a way to remove all of it. Excuse the noob.
that brown stuff is probably just flux residue, nothing to really worry about… as said before just some patience and you can resolder it… looks like the previous person did a poor job and most likely didnt use enough heat… but if you’re not comfortable resoldering it just bring it someone who either repairs computers or electronics and just have it done there.
You could use a solder pump and pull the old solder out, but that’s honestly probably not necessary. You can probably just redo the joints using the solder that’s there. As for the brown “gunk”, as said that’s just flux left over from the original soldering. I wouldn’t sweat it at all.
Cool man, thanks!