I just got done putting my motor back in the car. I drove it 150 miles with the wastegate disconnected. It ran great at all rpms. I then hooked up the wastegate with a very low boost. As it comes up on boost it starts to pops and bucks like its misfiring. I have been going nutty trying to figure out the problem.
Heres the car.
86 gn with new .20 over girdled lower end, pro ported intake and heads, new 210-205 broken in right, te64e with 3k on it, mease downpipe, new cam sensor, new r42 ac plugs gapped at .030, new msd wires, new 340 pump with hot wire kit, new billet reg. set a 45 psi, new translator plus with extender chip, new 72 lb. injectors, ground extender, all grounds new.
Thing I have already done to try to fix it:
checked maf, load tested all power wires and grounds, replaced plug wires, coil pack and module, crank sensor, coolant temp sensor, o2 sensor and circuit, adjusted boost, adjusted fuel pressure, replaced translator, checked vacuum, adjusted tps, reset cam sensor, checked terminal tightness on the pcm, injector harness.
IM out of ideas. Has anyone had a similar problem or have any idea how I can fix this.
PLEASE HELP. Im almost out of hair to pull out!
Any help would be greatly appreciated.
Andy
Heres the car.
86 gn with new .20 over girdled lower end, pro ported intake and heads, new 210-205 broken in right, te64e with 3k on it, mease downpipe, new cam sensor, new r42 ac plugs gapped at .030, new msd wires, new 340 pump with hot wire kit, new billet reg. set a 45 psi, new translator plus with extender chip, new 72 lb. injectors, ground extender, all grounds new.
Thing I have already done to try to fix it:
checked maf, load tested all power wires and grounds, replaced plug wires, coil pack and module, crank sensor, coolant temp sensor, o2 sensor and circuit, adjusted boost, adjusted fuel pressure, replaced translator, checked vacuum, adjusted tps, reset cam sensor, checked terminal tightness on the pcm, injector harness.
IM out of ideas. Has anyone had a similar problem or have any idea how I can fix this.
PLEASE HELP. Im almost out of hair to pull out!
Any help would be greatly appreciated.
Andy