My 92 300d has a lack of responsiveness when you give it throttle. The turbo works great, i replaced all the vacuum lines and the turbo spools at like 1600-2k. But i drive it with my foot in it all the way before kickdown. If you floor it, there's a general lack of responsiveness. The car won't move, it will just keep going at the same pace. At wot from a deadstop, it does have power but not otherwise.

The fuel filters ok and the vacuum system is functioning. It also has a good vacuum pump.

I was thinking of checking the alda and taking it off for a test drive but looks like you have to take the manifold off. Not what I'm trying to do at the moment till i have a gasket and glow plugs to replace the broken ones.

Also, how hard is it to check the intank filter? Can that cause a lack of responsiveness in throttle? It just seems like the engine doesn't want to raise in rpm when you give it gas

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k