kuw4subie

There's no EGR valve in the earlier(90-94) 2.2L Legacys.

I'm contending with the same symptoms of the flat spot (recent) and 16 flashes (for a few months now) on the same EJ22 engine (94). Are you having any other symptoms beyond these? I've also dealt with worsening gas consumption, smell of unburned fuel when accelerating under load (slowly as to not hit the "flat spot"), fuel smell in changed oil and on all 4 spark plugs. Resuming efforts on replacing Fuel Pressure Regulator momentarily (little phillips screw are a huge pain!). Fingers crossed here & wishing you luck too.

Check your belt's tension. Loose belt can result in that noise & vibrations as well.

Thanks!

Correction.. this 94 was a Colorado car until 2011. No rust..

I have a 94 Legacy LSi. The famed 2.2L non-interference engine. 250K miles and counting. In the last year I have had the struts, inner & outer tie-rod arms, front transaxles (for cv joints) changed out by garages. On my own in the last 6 months, I've replaced radiator, rad coolant hoses, fuel pump, rebuilt my pwr steering pump (buy Subaru OEM only because after-market doesn't include washer between pump & resevoir!), crankshaft sensor, anti-knock sensor, o2 sensor, muffler, water pump (after original equip failure!), timing belt & related idler pulleys, and now working on the fuel pressure regulator. Recently changed (not flushed) ATF fluid in auto tranny and recharged AC. My friends give me a hard time for not buying a new one but it was a Colorado car until 1994 and has virtually no rust on the body & frame. But it's old & had 2 overheatings in the 7 yrs I've had it. Now suffering from excessive fuel consumption,fuel smell under the hood, gas smell to oil and soot on the inside of the tail pipes. Ergo the new fuel pressure regulator. I'm a frequent flyer at the local after-market stores and Subaru dealers parts depts. Will be posting after over a year of crawling this site for awesome info. Thanks for that. Subarus rock. Next one will be a 2010 or greater Outback. But need a few more miles out of my 94 before dropping $14-15K on a gently used new subie.

And the original screws on this 250K miles have me feeling.. Well, you know. M6 seems too big and M5 seems too small. Anyone have a good source/thread recommendation on screw sizes and best practices to get the old rusted ones out w/out damage and ensure no fuel leakage between the fpr and the rail?