What are the main causes for running rich?
- Thread starter RoushTbird
- Start date
+1. The big Auto Parts stores like Advance and Autozone will pull your codes for free. Just write down the exact code and google search it when you get home. Bad oxygen sensors kill fuel economy.
Kurt
Kurt
That's incredibly rich! I'd wonder if you had a leak in your tank rather than be running rich. I had a hole in my tank that cause me to leak gas if I had more than a quarter tank in. One new tank later, and problem solved.
You'd snuff out spark if you were running that rich.
The tank grommet having torn was also my first guess. Once the tank gets down a ways, it will stop leaking (if someone inspects it at that time).
Is the car missing at all? No stuck injectors or grounded injector-driver wiring?
The tank grommet having torn was also my first guess. Once the tank gets down a ways, it will stop leaking (if someone inspects it at that time).
Is the car missing at all? No stuck injectors or grounded injector-driver wiring?
Sounds like it's time for tailpipe flamethrowers, then.
I agree with Hissin, your engine would be running like crap (if at all) with that much fuel. Too much fuel and it won't atomize into the air mixture and won't burn. If I remember right, it's the gas vapor that burns and not the liquid fuel itself.
I'll have to defer to Hissin on how to diagnose stuck injectors, never done anything like that before.
Well, I have some used, but known good injectors...ima try next. i turn the key on and not start it, the fuel pump doesnt stop priming. It just keeps going, then after about 10 seconds, i can here a hissing running water sound from my fuel rail/injector area.... i cahnge my fuel pressure regulator and the hissing stopped, but i still have abad miss. I pulled my plugs off one by one, and each one shocked the everlovin crap outta me 
good rush, so i know my msd coil is working, except the #4. New plug, new wire, still no sparky sparky. but that doesnt tell me why the rest are running so rich. In fact, i need a new word because rich doesnt describe it. Im not sure what it is, but speaking of vacuum, there is a cylinder thing about 3" around and 4" tall hooked to my vacuum system. It has a connector in it, and it fell on my header. 
so its melted pretty good. What is it so i can buy a new one.
Thank,s
good rush, so i know my msd coil is working, except the #4. New plug, new wire, still no sparky sparky. but that doesnt tell me why the rest are running so rich. In fact, i need a new word because rich doesnt describe it. Im not sure what it is, but speaking of vacuum, there is a cylinder thing about 3" around and 4" tall hooked to my vacuum system. It has a connector in it, and it fell on my header. so its melted pretty good. What is it so i can buy a new one.Thank,s
Well, I have some used, but known good injectors...ima try next. i turn the key on and not start it, the fuel pump doesnt stop priming. It just keeps going, then after about 10 seconds, i can here a hissing running water sound from my fuel rail/injector area.... i cahnge my fuel pressure regulator and the hissing stopped, but i still have abad miss. I pulled my plugs off one by one, and each one shocked the everlovin crap outta me
Thank,s
no spark just on number 4 ? replace the rotor and distributor cap
That piece is not the charcoal canister, the actual canister is in the passenger fender. That part is the CANP (Canister Purge Solenoid). It regulates vacuum to the charcoal canister and is necessary for proper functionality of the evaporative emissions system. It's mainly used to collect gas fumes from the tank and vent the fumes into the intake manifold. If it's damaged the system won't be able to vent and you may get a gas smell under the hood. It doesn't affect performance and should be repaired. Also make sure the vacuum hoses aren't damaged, you'll also get a gas smell and a good vacuum leak if you don't.
Similar threads
