Jayamashey
Junior Member
Need some help with an engine problem.
I completed a B16A SIR2 swap in the fall. Everything was running great until the weekend.
I drove it about 30 miles (50km) and it ran fine. Then i washed it and sprayed the engine bay down just with the hose. Then some guy came over and test drove it by himself (I am selling).
After he got back I started it and the engine is now studdering (especially in lower RPM). It feels like its misfiring and definately underpowered, but I am not getting any codes. When I accelerate in neutral and hit 4000-5000 RPM it makes a terrible noise (almost like loose heatshields), but over is better. It seems to shake/shudder alot in the lower RPMs when gas is given. Idle sounds OK but is a little more rough then normal but doen't have the shudder.
Any ideas?
BTW: Plugs, wires, dizzy, timing belt, O2 - are all 3 months old and worked well.
I completed a B16A SIR2 swap in the fall. Everything was running great until the weekend.
I drove it about 30 miles (50km) and it ran fine. Then i washed it and sprayed the engine bay down just with the hose. Then some guy came over and test drove it by himself (I am selling).
After he got back I started it and the engine is now studdering (especially in lower RPM). It feels like its misfiring and definately underpowered, but I am not getting any codes. When I accelerate in neutral and hit 4000-5000 RPM it makes a terrible noise (almost like loose heatshields), but over is better. It seems to shake/shudder alot in the lower RPMs when gas is given. Idle sounds OK but is a little more rough then normal but doen't have the shudder.
Any ideas?
BTW: Plugs, wires, dizzy, timing belt, O2 - are all 3 months old and worked well.
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