Help me figure out why my car is running so rich after swap - 3000GT/Stealth International Message Center

MuDvAyNeDude122 · 10-03-2007, 12:42 PM

i have a 95 base that i just swapped a 91-92 jdm engine into. im using the tt ecu that came with the engine. Everything else is stock. My car has been smoking extremely bad all the time but especially when accelrating. The smoke appears to be white but im not loosing any coolant. I am running extremly rich though, my exhaust smells like gas and i went through $20 of gas in about 20 minutes of driving. I just noticed today that gas is shooting out of the exhaust on the ground. I have pulled the front 3 spark plugs and all 3 had a flat black coating on them so that elimintated a stuck open injector. I datalogged for the first time today but im not sure how to let u guys see my log other than copying over all the graphs to this thread. Im using hhh datalogging software. In the error code section it said previous faults were: code 41, injector circuit. I really dont know what im looking at here, so can anyone tell me if they something wrong? thanks

MuDvAyNeDude122 · 10-03-2007, 01:13 PM

i just shut off my injectors one at a time, injector 4 didnt cause my rpms to drop like the others did.

WidowMaker · 10-03-2007, 01:25 PM

are you running on 5 cylinders? did you use your stock base air meter? do you have a leak? did you swap the engine harness?

MuDvAyNeDude122 · 10-03-2007, 01:31 PM

Quote:

Originally Posted by WidowMaker

are you running on 5 cylinders? did you use your stock base air meter? do you have a leak? did you swap the engine harness?

i dont know if im running on 5 cylinders, i am using the stock base mas, but there is no difference between any of them. i dont know if i have a leak, i havnt been able to pressure test, i am using my 95 na harness.

MuDvAyNeDude122 · 10-03-2007, 02:36 PM

i just swapped injector 4 with injector 3 and the problem is still with injector 4. So i guess it must mean wiring. I have a multimeter but im not sure how to check it. Could a wiring problem cause the injector to pour fuel like it is?

Xtreme2k2 · 10-03-2007, 03:09 PM

Quote:

Originally Posted by MuDvAyNeDude122

i just swapped injector 4 with injector 3 and the problem is still with injector 4. So i guess it must mean wiring. I have a multimeter but im not sure how to check it. Could a wiring problem cause the injector to pour fuel like it is?

It certainly wouldnt help

MuDvAyNeDude122 · 10-03-2007, 03:51 PM

i just looked at where i soldered in the resistors for the injectors. The resistor for injector 4 was kinda burnt looking, all the electrical tape on the resistor was all shiveled up and burnt looking also. I cut out the resistor and just left the wire disconnected for now and tried starting up the car. It was still pouring gas. So i still have no idea what the problem is.

MuDvAyNeDude122 · 10-03-2007, 07:27 PM

buuump

MuDvAyNeDude122 · 10-04-2007, 10:35 PM

buuump

MuDvAyNeDude122 · 10-05-2007, 03:47 PM

buuump

10-03-2007, 12:42 PM	#1 (permalink)
MuDvAyNeDude122 Forum Member Join Date: Jun 2005 Location: st. pete, fl Drives: 99'd tt'd 3000gt Trader Rating: (22)	Help me figure out why my car is running so rich after swap i have a 95 base that i just swapped a 91-92 jdm engine into. im using the tt ecu that came with the engine. Everything else is stock. My car has been smoking extremely bad all the time but especially when accelrating. The smoke appears to be white but im not loosing any coolant. I am running extremly rich though, my exhaust smells like gas and i went through $20 of gas in about 20 minutes of driving. I just noticed today that gas is shooting out of the exhaust on the ground. I have pulled the front 3 spark plugs and all 3 had a flat black coating on them so that elimintated a stuck open injector. I datalogged for the first time today but im not sure how to let u guys see my log other than copying over all the graphs to this thread. Im using hhh datalogging software. In the error code section it said previous faults were: code 41, injector circuit. I really dont know what im looking at here, so can anyone tell me if they something wrong? thanks __________________ mods: full 99 conversion, new 99 paint, 18x9 moda r6 wheels, 265/35/18 bfg kdw2 tires, intrax springs, 3sx control arms, twin turbo engine swap, getrag 5speed converted to fwd greddy fmic, prosport gauges, hhh datalogger, ats twin carbon clutch, sx performance fpr, carpc, k/n, ebay downpipe, solid motor mounts, optima yellowtop. Last edited by MuDvAyNeDude122 : 10-03-2007 at 12:46 PM.

10-03-2007, 01:13 PM	#2 (permalink)
MuDvAyNeDude122 Forum Member Join Date: Jun 2005 Location: st. pete, fl Drives: 99'd tt'd 3000gt Trader Rating: (22)	Re: Help me figure out why my car is running so rich after swap i just shut off my injectors one at a time, injector 4 didnt cause my rpms to drop like the others did.

10-03-2007, 01:25 PM	#3 (permalink)
WidowMaker 3S Motorsports Join Date: Feb 2007 Location: NY Drives: 95 VR4 Trader Rating: (0)	Re: Help me figure out why my car is running so rich after swap are you running on 5 cylinders? did you use your stock base air meter? do you have a leak? did you swap the engine harness? __________________ CLICK HERE FOR MONTHLY SPECIAL http://www.3si.org/forum/f1/3s-motor...pecial-435039/ 3S Motorsports Is Open For Business (631) 676-2448 Running the First Pampena 3.5L Stroker http://www.3smotors.com -Steve

10-03-2007, 02:36 PM	#5 (permalink)
MuDvAyNeDude122 Forum Member Join Date: Jun 2005 Location: st. pete, fl Drives: 99'd tt'd 3000gt Trader Rating: (22)	Re: Help me figure out why my car is running so rich after swap i just swapped injector 4 with injector 3 and the problem is still with injector 4. So i guess it must mean wiring. I have a multimeter but im not sure how to check it. Could a wiring problem cause the injector to pour fuel like it is?

10-03-2007, 03:51 PM	#7 (permalink)
MuDvAyNeDude122 Forum Member Join Date: Jun 2005 Location: st. pete, fl Drives: 99'd tt'd 3000gt Trader Rating: (22)	Re: Help me figure out why my car is running so rich after swap i just looked at where i soldered in the resistors for the injectors. The resistor for injector 4 was kinda burnt looking, all the electrical tape on the resistor was all shiveled up and burnt looking also. I cut out the resistor and just left the wire disconnected for now and tried starting up the car. It was still pouring gas. So i still have no idea what the problem is.

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10-03-2007, 07:27 PM	#8 (permalink)
MuDvAyNeDude122 Forum Member Join Date: Jun 2005 Location: st. pete, fl Drives: 99'd tt'd 3000gt Trader Rating: (22)	Re: Help me figure out why my car is running so rich after swap buuump

10-04-2007, 10:35 PM	#9 (permalink)
MuDvAyNeDude122 Forum Member Join Date: Jun 2005 Location: st. pete, fl Drives: 99'd tt'd 3000gt Trader Rating: (22)	Re: Help me figure out why my car is running so rich after swap buuump

10-05-2007, 03:47 PM	#10 (permalink)
MuDvAyNeDude122 Forum Member Join Date: Jun 2005 Location: st. pete, fl Drives: 99'd tt'd 3000gt Trader Rating: (22)	Re: Help me figure out why my car is running so rich after swap buuump