Rb20 Spluttering

[I8EE]

hi guys,

took my car down the strip the other week and it was fine then on the last run it was going spastic and spluttering at about 4grand but if you take your foot off and punch it again it seems to be fine. . . car was tuned for 18psi and now its only hitting 12 and doing that rubbish. . . .

ive changed over fuel pumps (had a walbro then put my mates new 044), swapped crank angle sensors and not sure what else to check. . . . i also changed the plugs too. . .

stumped on what i need to check, so any ideas would be helpful!

mods;

750cc injectors

3071r

microtech ecu

fmic

3" TB exhaust

[I8EE]

also got 5 spitfire coil packs and a standard one . . .

[I8EE]

bump! anyone. . .

[DVS JEZ]

I had a similar problem with my microtech. At about 2500 but.

Are they highflow inj?

Even if there not get them checked on a flow bench.

Can u try any other coilpacks from a mates car?

" " " " a mates ignitor too(if u run one)

[TJR32GTS-T]

Superspark igniter

Check for cracks in coilpacks

Check plugs/connections

Clean afm 

Check cooler piping connections

02 sencer

Fuel pump

Leaking injector

Crank angle sensor

Fuel filter

[I8EE]

ive checked the following;

Superspark igniter

Check for cracks in coilpacks

Check plugs/connections

Clean afm

Check cooler piping connections

02 sencer

Fuel pump

Leaking injector

Crank angle sensor

Fuel filter

anything else i should check??

[eightsixboy]

Why are you running 5 splitfires and one standard? I'd be chucking the standard coil and finding another spltfire.

[I8EE]

i think i may have found the problem. . . i have rewired my crank angle sensor, basically the wire i used wasnt insulated enough so i tore apart the standard loom and am going to re-connect it using the factory cable. . . will post up when i get around to finishing it off!

noticed on the microtech that it was coming up with RPM error and REF error. . .

[I8EE]

hi all,

problem fixed, crank angle sensor re-wiring has solved this problem. . . just goes to show that the standard loom is much better insulated than most other off the shelf set-ups. . .