Random/Multiple Cylinder Misfire Detected

[datapimp69]

Originally Posted by H2 Bill

Where in the world did you find hi-flow cats for the H2?

just find the right size and put them on.

here is what i bought

http://store.summitracing.com/partdetail.asp?autofilter=1&part=DTC%2D79%2D400250 &N=700+0&autoview=sku

[IRA51]

what code # is it throwing ? on a side note you could have gotten the Random tecnoligy cat to fit in the H2 without any problem ,and I hear they claim to be the freest flowing.

[HUMTECH]

Ummm well the stock converters when working properly have less than 1psi backpressure, hard to get much flow increase over that.

[H2 Bill]

Originally Posted by IRA51

what code # is it throwing ? on a side note you could have gotten the Random tecnoligy cat to fit in the H2 without any problem ,and I hear they claim to be the freest flowing.

At first I got the po420, I replaced the driver side cat and then got the po430 and replaced the passenger side. No codes since.

[IRA51]

have you checked to see if the headers havent burned the plug wires? old cheap skates way to check plug wires . get a spray bottle and spay the plug wires a night and start the truck if you see sparks the wires are shot . a DVOM will also work no water needed.