- Mar 20, 2017
- 133
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I have been experiencing a rough idle when engine is warm. If I would park, go to the store, then start the car up to leave I get about a 500-800 rpm surge and almost stalls. If I give the car gas up to 3k when I first start it, it levels out much faster to a normal idle around 900 rpm. I replaced the iac/ cleaned throttle body, check tps sensor (1.00). Its stock 5.0 gt40p heads and intake 1.7 rockers , trick flow 499-510 cam. I use 93 octane, recently chanced fuel pump and full tuneup. Any ideas?