[GTramirez21]

Hey Everyone, I ran into some trouble after changing my spark plugs and throttle body/ upper intake plenum. I gaped the plugs to OEM specs, cleaned and reconnected power supply to boots and fuel injectors, and reconnected all sensors to the throttle body and upper intake plenum. Once i finished, the car turned on, but was idling rough, between 6000 and 3000 rpms. At one point, it even died on me. I checked fuel pressure, disconnected the battery for 10 minutes and made sure the plugs were torqued. At this point, I don't know what can be causing it, but any advice/ help would be great. Thanks!

[97w5.4]

With a wild idle like that and the fact you had your TB off it sounds to me (someone let me know if I'm wrong) like your TPS is either dirty/unplugged/wont work with you new TB. If your new TB came with one, try your old TPS and see if that cures the problem. Check YouTube to see if theres a video of a bad TPS for reference. I included the URL to a how to for a TPS. I don't know if any of this is helpful, but no one else answered yet lol


http://m.youtube.com/#/watch?v=jHbeX...%3DjHbeXN-Vhko


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[SpyderAuto]

Any updates with this?

Something else to check out is the IACV, I know you didn't do anything with it but they can be very finicky. Just another thing to look into.

I always suggest cleaning the MAF as well, can never have your filters/valves too clean.

[97w5.4]

Originally Posted by SpyderAuto

Any updates with this?

Something else to check out is the IACV, I know you didn't do anything with it but they can be very finicky. Just another thing to look into.

I always suggest cleaning the MAF as well, can never have your filters/valves too clean.

To true IAC is notorious for being a pain. Also clean sensors and.filter are more accurate so again, ditto!

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[GTramirez21]

Hey guys, thanks for the help. It turned out that the IAC valve was clogged. Dont know how in the world that happened, but i just had to clean the unit out and it started up and idled just fine. Thanks again for the suggestions and help. Have a good one!