Fuel in oil!

[jdiaz1989]

91 Eclipse AWD . Mod list: 100% STOCK!

Had a problem about a week ago. Car was just dumping fuel into the cylinders. So bad that it would cause white smoke that smelled like straight gas. It wouldn't go past 1200k rpms without suttering, bogging down. Sometimes at a red light it would turn off. No coolant in oil or oil in coolant but the oil smelled like gas when checked from dip stick. Also, the car doesn't have a boost controller...so I was only building boost (when I could) around 5-7 (Mostly 5)

145 compression across the board. Spark plugs (brand new NGK BR6ES gapped at .28) fouled. Replaced fuel filter. spark plugs (twice). spark plug wires. PCV valve. I do have a cracks in the exhaust manifold and exhaust side of the turbo. No "boost leaks" in the rubber hoses for the intercooler (brand new rubber hoses*). Checked ECU, looked normal...no burns or fish smell. Tested the injectors 2.8 ohms, all firing. No CEL lights, ECU reports "All Normal". Engine temp stays in the middle. I do not have any logger software or A/F gauge... . I know this could be 1000 different things but what does this most commonly sound like? Timing belt jumped a tooth? FPR stuck open? Bad O2? Coolant temp sensor bad? Or could those exhaust cracks be sooo bad (They didn't look too bad) that it would cause my car to jump into open loop mode and dump nothing but FUEL. Please help!

 

[mcewendj]

I would personally start with pulling he vaccum source off of the regulator, engine idling remove the hose, if fuel dumps out of the regulator thenthat is definitely a start to your issue. A bad coolant temp sensor could be a culprit as well, telling the computer that the engine is always hot or cold, let me know if you need further help.

 

[silvreclips]

If you dump enough fuel into the cylinders it will contaminate the oil like you are seeing. I would also start with the FPR first, also check your fuel pressure, you can do this by just priming the pump and not starting the car.

Dont run the car until you change the oil FYI

 

[Abe'sGST]

Check your FPR, and your fuel pressure as well. WB should be on your list to buy soon.

 

[jdiaz1989]

Thank you guys for the quick posts!. That was one thing I haven't checked (I should have) The car is currently getting an entire exhaust makeover (Brand new mani, turbo, etc) and is ripped apart. As soon as I get her back into "running condition" I will check on the FPR which I figured could be the culprit.

Abe, I have a WB sitting right next to me. I was trying to get it welded on my car 2 different days but had to turn around to go back home due to the car stuttering, bucking and spitting. I'll keep everyone up-to-date on what I find! Thanks again!

 

[jaredS83]

When my manifold was cracked I wasn't building boost that great and running super rich like in the 9's on wb afr.