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Vf with jumper in. Taken as an average at operating temp. No compression test done, but car seems to have good power... Is a formal compression test my next step? I was just outside checking on the TPS... Infinite impedance from IDL-E2 all the time, unless I physically push the throttle...

Data collected: Vf @ 2500RPM approx +2.4VDC when at operating temp Temp at Random Tech cat inlet 440 F Temp at body of tech (non-heat shielded side) 220 F Temp at cat outlet 120 F Additional finding: Car had not given check engine light. However, when jumper was installed code 51...

Too cold to stay out there long, but I did check for ignition arcing. Nothing happening there, and it's real dark! If it's warmer tomorrow, I'll get the other data. I think my equipment will suffice...

JJ, I'll collect the data this weekend and report. Plugs are Bosch Plat, wires are NGK. Coilpacks are original...

The downpipe is the original (88) and the Random Tech was purchased brand new in summer of '03. I'm only putting on 3-4K miles a year, so lets say a max of 20K ago. I did have leaky valve seals a while back which I have since replaced...think the burning oil killed the cat(s)? I've got an...

Oooh, I just thought of something that might be related. I'm sorry that I didn't mention it earlier, but I just thought of it. A few days ago I had to give it a little gas to keep it going when I started it hot. Not floored or anything like that, but without a little throttle, it would quit...

I've still got the old O2 sensor still sitting around...

Some of the stuff you are asking I will have to check on. Here's what I do know: The engine does leak some oil, so I don't have a good idea about the amount that it actually uses vs. what it just drops on the ground. I did do the valve seal replacement two seasons ago. It doesn't smoke when...

Could you please elaborate on the valve cover thing? I'm not sure what you are asking. No Lex/550, I did replace the O2 sensor a while back with the one that MDC sells, but that shouldn't have altered the A/F... 3" cat back, but I don't think that matters.

Thanks for the reply. It drives nice, nothing of note. I guess I should have stated most engine mods have been removed, except Greddy Profec which is turned off. I am running the stock downpipe and airbox for the test, but they had been in the garage attic until I reinstalled them when I got...

Looks like the printer output and vehicle speed aren't matched up good. Black and blue lines are shifted left around a quarter inch...

Pics attached (no scanner...)

I had the car stored for the winter with the battery out. Had to go through emissions before I could register this year, so took it over yesterday, after having it back on the road for approximately 150 miles. Failed HC portion of emission test, @ 2.08 grams/mile (limit 0.8 gr/mile) so she...

Did we ever figure out if the HG is really blown? From the description it didn't sound like it, but I never saw if you did a leakdown or even checked the coolant hoses...

For the oil on the plugs, I would inspect the valve covers. Mine basically filled up the galley when they were loose. You couldn't see it from the outside. when you pull the spark plug wire boot off and look through the "spark plug galley cover" you could though. When you pull the plugs...

So the project is underway, but I haven't decided what to do about my new fuel requirements. To bring everyone up to speed, I'm working on running a GT35R on a HKS short runner. I guess a mod list might help too. 3" turbo back K&N intake Greddy IC kit w/Type-S BOV. Greddy EBC EGT...

No, haven't heard of anyone using it... Seems like is might be a little small, seeing as it's for a naturally aspirated 3 liter engine.

I used three 7mm allens together, fits nice. Check out the pics for some illustration of how I did it... First pic has the wrenches in a 14mm socket, second is how they should be configured.

Maybe this one? http://www.supras.com/06/techcenter/display.php?QID=28

If a belt is slipping, it might give that kind of smell...