is there a diagram with all the grounding points?
949
Senior Wagonist
1991 civic wagon rt.
looking for some damage from an electrical short that happened when the alternator cable shorted out.
i can sense there is still some damage left over from the short even with some replaced parts. i need to isolate the problem further and find out where there might be damaged wires. my first search is the grounds. i wanted to see where there might be issues. is there a diagram of where all the points of grounds are for the cabin wires and possibly the engine bay?
after replacing many parts it has worked much better but not back to the original state. so i know there is some more issues.
replaced already with brand oem parts:
alternator.
fuse box under the hood.
engine cable.
battery.
ecu. now with hondata.
tomorrow im replacing the ignition cable in the steering cluster. i hope that will solve some of power issues im having.
looking for some damage from an electrical short that happened when the alternator cable shorted out.
i can sense there is still some damage left over from the short even with some replaced parts. i need to isolate the problem further and find out where there might be damaged wires. my first search is the grounds. i wanted to see where there might be issues. is there a diagram of where all the points of grounds are for the cabin wires and possibly the engine bay?
after replacing many parts it has worked much better but not back to the original state. so i know there is some more issues.
replaced already with brand oem parts:
alternator.
fuse box under the hood.
engine cable.
battery.
ecu. now with hondata.
tomorrow im replacing the ignition cable in the steering cluster. i hope that will solve some of power issues im having.
Comments
my car just did some sparking. then heated up and melted the power cable on the engine harness. i never needed to replace any fuse. there was arcing of power i assume when it did.
im pretty intuned with my daily driven wagon. therefore i notice very slight changes. i notice something similar to white noise from the radio when i press the brakes or turn the key to acc. also the tps sensor is sensitive to any power changes. it goes out often. after replacing it, it will run fine for a week of driving, about a few hundred miles, and it will act like it is not calibrated. but i can calibrate it again with my hondara it will be fine again just for a shorter while. then will need to be replaced. the tps seems to get burned internally everytime.
I also put the 88rt ecu in my friends si, it maid his car stall and idle really bad-
no codes/check engine light.
I don't remember but I belive there are only 2 or 3 main fuses. It was a 60 amp I believe. You definitely should have blown a main fuse when that arc'd. Depending on how badly that charge wire melted/burned, it might have burned the insulation off of your tps wires and now they short? Just testing theroys mang. I know what you mean though about small things being easily noticed with a car you drive every day. Im always trippin on shit, haha. I also feel ya with the tps thing. Mines calibrated and still seems to manage to be a pain in my ass. Its a Honda thing.
well i changed out the ignition wires today.
well the out come....no real fix there.
i did notice that the start up was stronger but that was never an issue. oh well. its a 20 year old car so i dont mind replacing that event tho it wasnt broken. wish it was that so i can call it day.
i think the next cheaper fix or repair is the grounding points. they do look pretty corroded. so tomorrow im going to replace them. but i only can find two in the engine bay.
do you guys know where all of them might be? in the engine bay as well as the cabin?
ELD: i agree with you on the ELD and that was the first thing i swapped out. i was able to swap it with another used one. it helped a little but nothing really nocticable.
i now have a p28 hondata ecu. i converted to obd1. to see if the issue would go away but still no resolution even with an obd1 swap. but i do follow you. it may look good but it might still be bad. im not sure how soon i can try another one out because they are very expensive for a new ecu with hondata S300/turbo chipped.
CEL: no cel here either.
fuses: i dont recall if it was blown or not. all i know is i was able to drive home after seeing some smoke under the hood while driving. the wire connecting the alternator to the batt was melting. since i didnt want to worry i bought a brand new engine harness from honda, its all brand new now. that would also include the tps wire. its all attached and new as well.
can you point me towards the right direction with where all the fuses i need to check would be located at on the car?
is there a relay connected to any of this?
thanks!
well the main issue right now, which is getting worse, is the TPS sensor. it just seems to just be damaged on the earlier part of the coil (about 2%-15% of the TPS rotation). the car just stuters till i can press pass that area with the gas pedal. there is definitly a short or something. i have replaced the tps sensors many times already and now i just want to fix the issue instead of replacing another one just to run for a few hundred miles again.