I was driving my car and it all of a sudden seemed to go into limp mode. The idle is rough, the car is misting fuel out of the tailpipes and every other exhaust connection and is emitting white smoke from the tailpipes probably from burning fuel.
I pulled the codes but was told with a Quarter Horse tune / chip it may prevent the computer from communicating correctly and dumping correct codes. The code I got was 15. The ECU board where the Quarter Horse tune was dark so I thought the ECU was fried. I tested a second ECU I have with the Quarter Horse chip in it and the car ran the same. Any ideas?
Ok so... I pulled KOEO codes and got 85 and 15. Great! Bad ECU right? Not so fast!
I pulled the ECU out and swapped it with a spare I have. I only did KOEO and only got code 85. I put the Quarter Horse chip in the second ECU and the car ran the same. I pulled KOEO codes with the chip in and it threw code 85, not 15. I did the KOEO codes again and got 85 and 15!
I'm not sure if the Quarter Horse chip is married to one specific ECU which would not allow it to run with the new ECU. I was told the Quarter Horse chip can prevent the ECU from throwing codes.
I pulled the ECU out and dropped it off to have the Quarter Horse chip checked the make sure it isnt bad.
Now, without the ECU in, I cycled the ignition to the on position several times and left it for about 15 mins while I pushed the car into the garage to make sure the steering column didn't lock.
4 hours later, I came out and there is fuel leaking from every joint on the passenger side exhaust. Maybe 1 drop on the drivers side hanging, not enough to drop to the ground
All drivers side plugs are dry.
Passenger side plugs, #4 soaked with fuel, #3 about half wet, #2 maybe a couple drops and #1 is dry. All 8 plugs look the same other then the fuel.
The injectors are Deka 60#ers.
I have been having an unknown fuel pressure issue to. Fuel would come out of the cap. Ive checked the return line around the tank and don't see any visual pinches or kinks. Ive drilled the cap but it hasn't really helped. It causes crap to stick to the paint around the fuel door as you can see in the picture.
The car doesnt have the smog stuff so I don't know if it does or doesn't have the purge solenoid and I'm not too sure where to find it. I know it doesn't have the canister.
Once I get the car back together so I can crank it (starter nose casting also broke off in the bellhousing last week), i was thinking of starting with a noid light test for the injector harness.