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Hello There i have a 1995 Pontiac Fire Bird 3.4L i changed the lower and upper intake manifold gasket on it and did everything to torque speaks put it all back together and just turns over and over pulled the upper intake manifold to see if i fucked up on something but did not double checked to see if i missed a wire to plug in but did not i have spark and fuel up there so went and changed the wires and plugs and still nothing just wondering what else it would consing it not to start
Thanks Huchters358
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Changed mine on a 3.1 in photo. A lot of BS to get down to the lower gasket. Check fuel pressure on rail with actual reading. Check Spark with true HEI spark tester. Check Compression with gauge. etc… its a lot of steps but you have to narrow down problem to fix. This internet forum wont magically guess the problem but can only help narrow in a directions.
You can try starting with starter fluid. Check your firing order from coils to correct cylinders. Did you plug back in injectors under the upper etc. Please post back if you get more details
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