Sr20 breaking up under load
 

My sr20de plus t will free revv fine but as soon as it sees load and boost it will break up heaps and cough and splutter. I have changed plugs multiple times have had coils tested and came up okay (although sometimes it doesnt mean anything as they arent tested when hot etc) i have also done a new coil loom and had injectors cleaned. Still has the same problem. Will likely source some different coils and see if that fixes it but has anyone got any other ideas?

I have the same issue. Check your ignition timing

Have a blow off valve? Could be loose and blowing open under boost. Been there done that

I had this problem. For me, it was the coilpacks. At first , I wrapped them with electrical tape, which helped. The old coil packs can arc to the valve cover. I am now running qr25de coil packs, and wrapped for extra measure. The car starts so much easier, and runs smoother

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It does but ive tried it both connected and not connected and hasnt nade a difference

Cheers. Ill prob get some different sr coils or do yaris coils

Likely taking it to a tuner soon anyway so ill get them to look at that aswell

sr20de and u added a turbo?

Or sr20det

If its the first you will need tuning for it to run proper

^that

Mine was a Tial so it was the mechanical spring weight blowing open connected or disconnected. I had to change the spring to a heavier one to fix it. Figured it out by removing it and wrapping the pipe with ductape for a test run. Definitly dirty but it works

De+t man. Added turbo. Been tuned on link g4

Its been tuned...


Check for boost leaks

No boost leaks.

Sparkplug condition and gap

Can you clear your inbox? Trying to send you a message.

when was the last time you maintained/inspected your fuel system? ie) changed the filter? how many miles on the fuel pump/is the fuel pump original for the car?

Op hasnt been on since the 17th....guess hes not to concerned.....