91 4.0 fuel injection - Ranger-Forums - The Ultimate Ford Ranger Resource

4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 09-10-2009
Thread Starter
Join Date: Sep 2009
Location: Modesto, ca
Posts: 1
91 4.0 fuel injection

Hello, new here but havn problem with my 91 ranger 4.0. To start it i have to have the trottle wide open and it dosnt want to run below 3 thousand rpm and its blowing grayish black smoke. I smell gas really bad and it is leaking out the connection between the exhaust manifold and the tail pipe. Its obvious that it is just pumping raw fuel into some of the cylinders. No engine light either. All electrical connections are good on the injectors and seems all sensers are ok because check engine light not on.
Any suggestions?
Stuck injector?
Signal from a senser telling it to richin up or injector to stay open?
Thanks for help
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