avk

Let's try and keep this a technical argument. You seem to imply that the solenoid is not designed to withstand a continuous current even though it is designed to withstand a more stressful frequent on-off pulsing. If that's what you are 99% sure of, you probably have some first-hand information about how the system operates.

Are you sure it's a valid comparison? One might think it's the electrical-thermal-mechanical cycling which actually wears out the solenoid and its valve. If there is constant current passing through the coil, with the valve open, there shouldn't really be any wear.

The transmission is a long-running design jointly developed by several Japanese automakers. As always, you have to make sure the one you're looking at works well and has been well maintained.

But isn't keeping the solenoid in the open position much easier on it than constantly cycling on-off which is what TCU does to maintain the pressure? Just curious.

Mike: I thought the light was on because of the carbon canister, but actually you never disconnected the old one, though I'm not sure what happened to the purge hose. Looks like you got two canisters now, both working.

Mike: CEL is the "Check Engine" light.

Good to hear it all worked out! 2.2l engines had EGR w. AT drivetrain only, on 1995-99 models. The original charcoal canister is underneath the car, behind the right rear wheel and you might need to plumb it in if you want to eliminate the CEL: A '98 ECU unlike '95 has "enhanced evaporation emissions diagnostics" (codes P044x) and uses a sensor or two attached to that canister.

Inspection stations do not recognize 1995 models as OBDII-equipped, even if they are, and failing for "check engine" being on applies to OBDII tests only. Re. the original question, I have a '95 OBDII FSM diagnostic section.

When looking at the schematics, make sure '98 and '95 alternators are wired the same way (even if you know the '95 plug matches the '98 alt.). You didn't mention the charge warning light coming on. This may be one of the simpler circuits to check.

Cougar: I meant the blower fan, if Mike also mentioned the cooling fan I didn't catch that.

The fan relay circuit is not switched by the ignition relay, and the fan has power, so there has to be something more to the problem.

Mike: the oil pressure switch connects the warning light directly to the ground, so if it's on, there must be 12V at the cluster and accessory circuits. Are you positive the wiring matches pin-by-pin? Is the new engine harness grounded where it's supposed to? That's all I can come up with right now.

The number of camshaft turns needed for the marks to re-align equals the number of teeth on the timing belt. The number of crankshaft turns is twice that. Not very practical. This is assuming that the no. of teeth on the cam sprocket and the no. of teeth on the belt have no common factors beyond 1 (for even wear, like ring and pinion in the diff.).

Hopefully the manifold will come complete with injectors and a throttle body, or at least the old 2.5 parts will fit. Also make sure you get new gaskets, from the rebuilder or elswehere.

Maybe they are copies of Bosch? All the other relays in the car are different. Also, the pictures I saw were for '95 ABS, but you know what a Bosch "cube" relay looks like, so you can tell if that's what you have.

On the picture in the diagnostic manual, both ABS relays look like Bosch type (maybe because the system was licensed from Bosch?), with Bosch numbering of the pins. But Bosch relays come in several configurations, different in width and arrangement of the pins. You'd have to find an exact match.

The biggest difference seems to be that on a 1.8l, there are extra "collector" pieces sandwiched between the intake and the head on each side. Also a 1.8 engine should have an EGR valve, whether w. MT or AT, and it's attached to the intake rather than to the head like on 2.2. Hope it's not what you have.

If the 2.2 engine was put into a 1.8 car, the intake manifold could have been swapped to make the harness work. Hopefully it's not the case, but if it is, the 2.2 harness may not fit.

Mike: Thanks for posting the numbers. But if these contain information about the engine type, I must say I don't know how to read them. What I had in mind was the type of code found on the emissions label on the hood. I know they don't give you a label with the engine, but maybe the rebuilder has a way to know the code. As to electrical differences between 2.2s on '95 Legacy and Impreza, I don't know of any, as long as transmissions are the same, either manual or auto (and all '95 2.2 Imprezas are supposedly auto, although people reported some with MT, all of them 2dr afaik).

The idea of an OBDII harness having 3 plugs and OBDI having 2 was a speculation on my part, since I only have wiring schematics for a '95. But there has to be a difference. Officially, all 2.2 Imprezas are '95 or later and all are OBDII. Maybe seeing a diagram for '94 Legacy will help.

I thought maybe the 2.2 core they used arrived w/o a harness, and they put one from a 1.8. But it shouldn't be a direct swap: 1.8 has a different idle control and an extra sensor for exhaust pressure. ECUs are different as well. Or maybe it's a pre-OBDII 2.2, like a '94, but then it wouldn't be from an Impreza. Do you have the engine code?

Mike: are you sure the '95 Impreza engine is 2.2 and not 1.8? The '95 diagram shows that 1.8 harness has two 16-pin connectors and 2.2 has three (16, 12, and 6 pins). I can send you the diagram.

Does anyone know if any serious changes were made to the t. belt design over the years? It's of practical interest to me because I have a NOS belt for 2.2/1.8, bought with a bunch of other parts, and I wonder if using a newly made belt would be any better.

On the left side, there's an O-ring between the cylinder head and the camshaft support (the part which takes up space between the head and the timing cover, and holds the cam sensor). The O-ring is exact same part as on the right side.

Clark's answer is the closest, esp. if one allows for some beer to be left in the can, although that would be far-fetched.