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Re:I'm pulling the intake/Vibrations in the wallet <br><br>Hey Jeepster,<br>I feel your pain man. I work in a machine shop and have seen this senerio played out many times. Should I spend a little now and a lot later or just bite the bullet? It is always a hard call when the engine was running...

Hey Luvmybronco<br><br>We use noid lights at work. You can buy them at autozone for around $7. Just plug one into an injector wire and crank the engine, if the noid light flashes you have injector pulse.

Dyno tuning can be effective if done by a competent tuner. Is it worth it? That depends on how well your engine is tuned now. You are not going to see a big difference if you are already close to optimal settings. If your engine is bone stock then chances are, you can get pretty close yourself...

You said you changed the fuel pump, did you check the filter?