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Well, I swapped the fuel rails on my ZE from the old K8 ones that the mechanic put on to the rails I pulled off the straight neck manifold that came with the ZE. It started up and everything seemed to be working just fine. But when the engine is cold and I open the throttle up, I get nothing. It doesn't stall, it just accelerates very slowly. After the engine warms up to normal operating temps I dont have that problem, but it still seems to have less power than before. Any ideas whats going on?

Could be a bad FPR or messed up injectors. I would put the K8s back on and send the KLs to be remanufactured.

when i got my BP i had to replace 2 of the injectors because the idiots who pulled the motor musta smacked the fuel rail with something and cracked the nozzle housing....

Injectors are the most common part to get damaged on a donor motor (purchased)

same thing happen to me when i swapped injectors.

And what fixed it? New injectors or a fuel pressure regulator?

I've had good experiences sending injectors for refurbishing and flow testing by these guys:
http://www.witchhunter.com/

Reasonable prices @$17 per injector and faaast shipping too.

neutral wrote:I've had good experiences sending injectors for refurbishing and flow testing by these guys:
http://www.witchhunter.com/

Reasonable prices @$17 per injector and faaast shipping too.

Wow - I've been trying to find somebody locally to refurbish my old set of klze injectors but no luck. That's a decent price!

thanks for the link!

Did you reset the computer when you swapped injectors?

If you don't have any idle issues (which would indicate a vacuum leak), then I would try resetting the computer and proceed from there.

I fixed it by swapping them out for another set I had around.

Quick question: How do I reset the computer?

I haven't driven it for days cause a seal in the radiator is busted and it dumps the coolant out and overheats. Ordered new parts for that, should be fixed by friday.