Rough Idle and Electrical Problems.. HELP!

Angelwankel · 02-14-2010, 10:30 PM

I got a chance to chat with him. Don't want to misinterpret anything, so I just changed our names :P Here is the conversation.

Him: It was the main power wire for everything interior.There's a black connector about 3-5 inches from the main fuse box under the hood. I cut that connector out and soldered the bare wires together.
Me: it was just corrosion right?
Him: That's what caused it, but it was so bad that it was just going to keep happening...so I cut the connector out.
Me: okay. To test it, to see if that was it, did you just wiggle it a bit?
Him: Don't quote me on this, but I think the brakelights are on a different circuit..same as headlights...so his problem is different.
Him: yes I'm about 75% sure it's a different circuit...sorry. :-/:-/ Worth a shot to check it though.

XaulZan · 02-15-2010, 02:13 PM

Sounds like a dirty fuel issue to me, have you drained your tank and looked at the fuel, water or contaminates in the fuel will cause exactly what you describe, and if there was no gas cap on it then you could have water AND rust inside your tank, bad combo. I would drain all the fuel from the system into a clean container and inspect it closely, the water (if any) will sink to the bottom, whereas any rust or dirt will sort of float around near the top. If you do find rust you can get a new tank or a Kreem gas tank cleaner system, but I would reccomend a new tank, and possibly fuel rail (or you could pull the rail and completely dissassemble it then soak the metal peices in lacquer thinner).

TS87FC3S · 04-26-2010, 09:53 PM

ok new issues with car,(88 gxl) i fixed all previous issues including idle fluctuations and hesitations by cleaning fuel tank, new filer and plugs, adjusting tps and cleaning throttle body. i also gutted cats and ran a custom 2.5inch cat back, and wired open 6 ports.

Now here are the new issues;
Car has a crazy multiple random misfire at idle, and when u hold it at constant rpm with no load. flipped wires around kinda helped then started doing it all again. (i did the propane check to find leaks and noticed nothing, have pulled plugs they look fine, air filter looks fine, fuel filter has maybe 1500 miles on it, im just kinda lost)

Also at around 6k it feels like car loses all power, nose drops but rpm still try to climb.. so bad that in 2nd foot to floor it wont get to the buzzer.. here is my concern with this rpm still slowly try to climb but wont pull, during this trip i had a hot brake smell i was hard on brakes but not sure if it was clutch or not (xtd stage 3 clutch came with car i put it in and did the break in it has like 2k on it)

RETed · 04-26-2010, 10:07 PM

Did the car run better before the clutch job?

If so, did you forget to put back the main ground on the starter bolt?

-Ted

TS87FC3S · 04-26-2010, 10:14 PM

Car didnt run worth a F*ck before the clutch job (the clutch came with the car thats the reason i put in on in case anyone wants to say anything about possible clutch slippage cuz its an xtd)

AND actually i had to add grounds to the car to get it to run decent so i might hve left that ground cable off ill check that in the morning any other ideas on what it possibly could be...

02-14-2010, 10:30 PM	#1
Angelwankel RX-7s are reliable. Join Date: Feb 2010 Location: Houston TX Posts: 12 Rep Power: 0	I got a chance to chat with him. Don't want to misinterpret anything, so I just changed our names :P Here is the conversation. Him: It was the main power wire for everything interior.There's a black connector about 3-5 inches from the main fuse box under the hood. I cut that connector out and soldered the bare wires together. Me: it was just corrosion right? Him: That's what caused it, but it was so bad that it was just going to keep happening...so I cut the connector out. Me: okay. To test it, to see if that was it, did you just wiggle it a bit? Him: Don't quote me on this, but I think the brakelights are on a different circuit..same as headlights...so his problem is different. Him: yes I'm about 75% sure it's a different circuit...sorry. :-/:-/ Worth a shot to check it though. __________________ '88 NA GXL Working fifth and six ports are awesome. Too bad mine do not work. </3

04-26-2010, 09:53 PM	#3
TS87FC3S Ask Me About My WANKEL!!! Join Date: Jan 2010 Location: Missouri Posts: 127 Rep Power: 16	ok new issues with car,(88 gxl) i fixed all previous issues including idle fluctuations and hesitations by cleaning fuel tank, new filer and plugs, adjusting tps and cleaning throttle body. i also gutted cats and ran a custom 2.5inch cat back, and wired open 6 ports. Now here are the new issues; Car has a crazy multiple random misfire at idle, and when u hold it at constant rpm with no load. flipped wires around kinda helped then started doing it all again. (i did the propane check to find leaks and noticed nothing, have pulled plugs they look fine, air filter looks fine, fuel filter has maybe 1500 miles on it, im just kinda lost) Also at around 6k it feels like car loses all power, nose drops but rpm still try to climb.. so bad that in 2nd foot to floor it wont get to the buzzer.. here is my concern with this rpm still slowly try to climb but wont pull, during this trip i had a hot brake smell i was hard on brakes but not sure if it was clutch or not (xtd stage 3 clutch came with car i put it in and did the break in it has like 2k on it) __________________ 1984 Rx7 Gs - stripped interior re speed coil overs, tokico blues, re speed crossmemeber and mustang rack, diamond star racing wheels 1988 Rx7 Se - Sold 1988 Rx7 GXL - Sold

04-26-2010, 10:14 PM	#5
TS87FC3S Ask Me About My WANKEL!!! Join Date: Jan 2010 Location: Missouri Posts: 127 Rep Power: 16	Car didnt run worth a F*ck before the clutch job (the clutch came with the car thats the reason i put in on in case anyone wants to say anything about possible clutch slippage cuz its an xtd) AND actually i had to add grounds to the car to get it to run decent so i might hve left that ground cable off ill check that in the morning any other ideas on what it possibly could be... __________________ 1984 Rx7 Gs - stripped interior re speed coil overs, tokico blues, re speed crossmemeber and mustang rack, diamond star racing wheels 1988 Rx7 Se - Sold 1988 Rx7 GXL - Sold

02-15-2010, 02:13 PM	#2
XaulZan The Newbie Join Date: Feb 2010 Posts: 14 Rep Power: 0	Sounds like a dirty fuel issue to me, have you drained your tank and looked at the fuel, water or contaminates in the fuel will cause exactly what you describe, and if there was no gas cap on it then you could have water AND rust inside your tank, bad combo. I would drain all the fuel from the system into a clean container and inspect it closely, the water (if any) will sink to the bottom, whereas any rust or dirt will sort of float around near the top. If you do find rust you can get a new tank or a Kreem gas tank cleaner system, but I would reccomend a new tank, and possibly fuel rail (or you could pull the rail and completely dissassemble it then soak the metal peices in lacquer thinner).