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EA82T runs great in cold temps, bad in hot


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My EA82T in a GL-10 wagon runs excellent in temperatures less than 40 degrees, but terrible otherwise.

In cold weather it runs great but has a high idle and gets pretty close to 20 mpg. The turbo kicks in great, it climbs hills in 3rd (slowly but at least it tries), and drives like a scalded dog.

In warm weather, the performance is intermittant with it being more bad than good. It seems that just when the turbo should kick in, it goes sluggish. It acts like it has a govenor to limit speed on every gear. To go faster I have to change gears. It gets 10-13 mpg, idles low, and has a hard time climbing a hill in 1st and 2nd. Downhill it runs pretty good, any kind of load bogs it down.

Trouble codes show 2 long flashes and 3 short which I read to be 23 which is MAF.

I expected an error code on the iddle ma-jiggy but the comp. just flashed the 2 longs, 3 shorts over and over. Should I clear the codes and go again?

I have a K&N style filter which sucks air like a semi tractor trailer(you can hear it).

I have checked and rechecked the vac hoses but could have missed something. I even took pics of another EA82's engine compartment.

I do not think the waste gate linkage moves freely on the turbo but can not be sure because of lack of a schematic with a neon sign pointing it out.

It runs like something is trying very hard to work but is not quite making it.

Sometimes I can run it in 2nd or 3rd longer than I should at high RPMs, then after that it runs good until I shut it off and it cools down (this seems to be more the case in cold weather).

I have the dealer service manual for the engine and a Haynes book and back during the summer I had the things almost memorized. I finally gave up and just drove it.

I read the thread on cleaning the MAF with brake cleaner. How do I do that? Squirt it up the hose? All the contacts are new and shinny looking. I have changed most everthing else. Can not remember if I changed the PCP valve ha-ha.

Any advice will be appreciated and tried and I will try to post my findings.:horse:

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