Hi,

I've got a 1992 Ford Ranger 2.3L with about 240,000 miles on it. The check engine light started blinking on and off pretty regularly so I pulled the OBD1 continuous memory codes and came up with this.

327 - EVP/EPT circuit below minimum voltage

328 - EGR closed valve voltage lower than expected

334 - EGR closed valve voltage high

I can't say these codes mean a whole lot to me besides I've got issues with my EGR valve and possibly the EGR valve position sensor.

I figured I would post and see if anyone had insight into these codes or the combination of them together. Any tips for fixing it? I was thinking I'd start by replacing the EGR valve. They're not too pricey.

Thanks a bunch.

Pad

 

For anyone else with a similar engine throwing these codes the problem completely cleared up after I replaced the EVP (EGR position sensor). No more CEL and running great. Cheap fix too, only a $30 part.

 

Yup, its a common problem part, good to hear replacing it fixed your troubles.