super bad misfire need help

[michael454rs@hotmail.com]

so i got done with my swap and its misfiring baddddd i cant rev the engine pass 2k rpm, at idle it sounds smooth, i put new spark plugs wires coils are all sparking, got the two icm cheked and there good tried both of them and it still missfires, can this be cause by an exhaust leak somewhere say manifold for example? do these cars have some sort of timing that can be cheked? if anyone can shime in i would appreciate it

[DegrezzE]

Re: super bad misfire need help

Did you put the spark plug wires back on in the correct order?

[michael454rs@hotmail.com]

Re: super bad misfire need help

yup double triple check, took them of three times and put them back on

[kristen]

Re: super bad misfire need help

check the spark...and coils

[michael454rs@hotmail.com]

Re: super bad misfire need help

did that too all the coils are working fine, idk what else can cause this?

[Niko97RS]

Re: super bad misfire need help

that motherboard underneath the coil packs can go bad too

[michael454rs@hotmail.com]

Re: super bad misfire need help

had the icm two icm cheked both where good installed both of them but i still does missfires

[michael454rs@hotmail.com]

Re: super bad misfire need help

figured out the problem turns out that the sensor thats behind the harmonic balancer was messed up swapped it out and its good as new now all i have fix is leak on the manifolds and test the engine on a long trip and see how it behaves