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V8 it starts fine but it wont idle if you give it gas its fine but if you let it idle it goes from a low idle to a high idle a couple times then dies is it the ecmchip?
Wiki User
∙ 15y ago
In the situation you describe I would doubt the ECM, however you should check the EGR valve for deposit build-up and to make certain that it is working right. It could also be exhaust deposit build up to or from the EGR valve.
If it's something like the TPS, you'd expect a "check engine"light, but sometimes it's a good idea to use a diagnostic scanner even if you don't have a light on.
Wiki User
∙ 15y ago
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