2seater Posted October 13, 2011 Share Posted October 13, 2011 There is no way to check the fuel pressure through the CRT. This can only be done with an inexpensive test set. Harbor Freight sells one that works just fine. Typically the most common cause of poor mileage is a slow, or defective, O2 sensor, but beyond that, there are many things that can cause a problem. Padgett points out a misfire will cause problems that the O2 has no control over, and will drive you crazy. The reverse is also true. A defective injector may cause a mixture that the plug can't fire consistantly. Indirectly you can watch the Fuel Integrator (short term correction) and Block Learn (long term) to see what the ECM is trying to do. Readings that are substantially above 128 indicate the ECM is trying to add fuel, and under 128 indicates it is trying to lean the mixture. Link to comment Share on other sites More sharing options...
Guest Kingsley Posted October 13, 2011 Share Posted October 13, 2011 Speaking of MAF sensors, some time ago the became the subject of a lot of commentary on the Forum. I my recall is correct, someone asked what the interior of a MAF sensor and at that time there was no reply.Take a look at this and you will be much more learned. Link to comment Share on other sites More sharing options...
NCReatta Posted October 13, 2011 Author Share Posted October 13, 2011 Padgett gets the prize!!!! I changed the coil pack to a newer Magnavox from my Maui parts car..The car runs like a new car!!! I even completed a burn out infront of the shopping center! Link to comment Share on other sites More sharing options...
padgett Posted October 13, 2011 Share Posted October 13, 2011 That is why I always keep a couple of spares around, have had several later coils and one module go bad. Link to comment Share on other sites More sharing options...
2seater Posted October 13, 2011 Share Posted October 13, 2011 Good deal. Always good to hear what the solution was for future reference. Ciao Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now