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Rb25Det, Nasty Miss/near Stall At Mid-Rpms

Traah221

By Traah221,
in General Maintenance

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Traah221 Contributor

Traah221

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Posted

Well, this is aggravating. The engine was prior flooded, but I managed to get that sorted out, but I noticed that the car is quite frankly running like hell. Idling, and at any point in the RMP band, the old RB misses almost to the point of un-driveable, but when it hits mid-rpm range, it struggles to keep any power at all, often cutting out completely unless I let off the throttle. I can very slowly nurse it past the point of it dying by gradually raising the RPMs, running it all the way up the band, but the moment I blip it, I can almost kill the car at 20 kph. Then, if it is parked and sits overnight, I can't get it started for the life of me. It will crank and crank all day, but never a hint of firing unless I completely replace the spark plugs. It's got a brand new set of spark plugs, and my fuel pressure is nominal. I have read lots of things about the coil packs arcing out and messing up the spark, so I'm going to liquid tape them, and I plan on replacing all my old worn vacuum lines with new silicone lines. Aside from these things, what other suggestions do you have?

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