auto ecu to manual ecu, solder as jumper for rp18
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auto ecu to manual ecu, solder as jumper for rp18
i did an auto ecu to manual ecu conversion. i removed rp17 and rp18, but instead of a jumper wire I just used a big blob of solder to jump rp18. is that enough to achieve 0 ohms or should I use an actual wire? i'm still throwing code 19 so i'm guessing solder is not very conductive, or is it?
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Re: auto ecu to manual ecu, solder as jumper for rp18
its conductive, but if you managed to get a blob like that its not sicking to the copper traces on the board, you'll need wire or the leg off a resistor, capacitor.
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Re: auto ecu to manual ecu, solder as jumper for rp18
the blob is connected to both resistor legs. i just removed the resistor by moving it back and forth til it broke off its legs.
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Re: auto ecu to manual ecu, solder as jumper for rp18
Use a staple, twist tie, anything wire. Jump it correctly. And keep in mind a poor joint could easily cause this issue. Clean it off and do it again.
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Re: auto ecu to manual ecu, solder as jumper for rp18
ahh ok. i just redid it. put a copper wire through both holes and soldered it up, time to test it again, will update this thread in 15. i'm a noob with a soldering iron but i'm slowly learning. might have to get a better soldering iron too, this one takes forever to melt the solder. it's a craftsman 120 volt 45 watt one. is that decent or should i upgrade?
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Re: auto ecu to manual ecu, solder as jumper for rp18
oops. i did it wrong. i took out r17 and r18! i looked on the other side of the ECU and found rp18 and rp17. anyone know what r17 and r18 are for?
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Re: auto ecu to manual ecu, solder as jumper for rp18
What are you using for solder? 60/40 rosin core will melt pretty quick with just about anything, make sure you use paste. As far as the iron I use a small 25 or 35 watt Weller pencil iron for doing small stuff like this. I use a 100/140 watt dual heat Weller gun for bigger stuff.
#11
Re: auto ecu to manual ecu, solder as jumper for rp18
You need to remove RP17 and RP18, install jumper on RP18 only... Make sure you re-install R17 and R18. Hopefully you didn't screw up this ECU..
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Re: auto ecu to manual ecu, solder as jumper for rp18
yeah i removed r18 and r17 from the knock board (obd1 jdm p30). i put them back but i had to use resistors from another ecu cause the ones i took out broke. i'm not even sure they're the right ones cause i threw the old ones away. i finally did the rp18 and rp17 thing and the check engine light went away, but now i'm afraid the ecu is going to retard ignition timing like crazy because i may have messed up the knock board. do you think I could just remove the entire knock board? I've been doing some reading and one guy said he just desoldered the ribbon from the knock board and it runs fine.
#13
Re: auto ecu to manual ecu, solder as jumper for rp18
yeah i removed r18 and r17 from the knock board (obd1 jdm p30). i put them back but i had to use resistors from another ecu cause the ones i took out broke. i'm not even sure they're the right ones cause i threw the old ones away. i finally did the rp18 and rp17 thing and the check engine light went away, but now i'm afraid the ecu is going to retard ignition timing like crazy because i may have messed up the knock board. do you think I could just remove the entire knock board? I've been doing some reading and one guy said he just desoldered the ribbon from the knock board and it runs fine.
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