mhayden81

So I am having issues with my engine when I am on the highway. If I cruise at 80-83mph the check engine light starts flashing and you can really hear and feel the engine stumpling.
I put my SCTand I got the P0301throughP0308 which would meanrandom misfires. At first I thought it was bad air through the CAI so I cleanedthe filter and the MAF sensor withelectronics cleaner. I doulbe checked my Saleen underdrive pulleys and they looked fine, but I went ahead and reset my crank pulley and double checked the water pump pulley.I replaced my plugs thinking that this would solve the problems but same thing happended. I am thinking it is the COPs which if it is do you guys recommend maybe Summit's COPs or another brand which I can upgrade to?

The odd thing about it once it happens the check engine light flashes it stays on but it does not feel like it is misfiring and it only happen when Iam going 80-83mph.

Any suggestions?

moosestang

That's strange. I'm using the accel cops with good results. Someone said the summit ones are the same.

Mikes_BLK_GT

I cant give a recomedation but I am planning on getting the summit cop's and also have read they are the same.