Having problems with your 2000 Pontiac Firebird ?
CODE P1870,P0420 WHAT IS TROUBLE CODE P1870,P0420
P1870 generally means that the transmission is slipping. P0420 relates to an issue with a vehicles catalytic converter. To know specifically what each code is, as it relates to your vehicle, you should take it to a local auto-part store (like AutoZone and have them pull the codes off of your vehicle. At auto part stores, they generally do this service for free and it is pretty quick. Regards ~ JD
Repair Help & Product Troubleshooting for 2000 Pontiac Firebird
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