Question about Cadillac STS
Yep just check your fuel pressure on the rail, also have your fuel pressure regulator tested, but you should be able to pick up on this when you check the fuel pressure.
If you are getting the correct fuel pressure before starting and during your starting seqence then your fuel system delivery will be fine, this means that all your fuel control modules etc will be operating correctly.
You need to check the delivery signal to the inectors and check that your cam angle and crank angle sensor signals to the ECM, are at the correct voltage rated which is usually 2.5 volts to the ECM and 2.0 volts from the ECM to the injectors.
Once you have done this let me know and I can give you further information.
Posted on Jul 23, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Apr 06, 2013 | 2003 Cadillac Seville STS
Jun 03, 2012 | Cars & Trucks
P0303....Cylinder 3 Misfire Detected
P0304....Cylinder 4 Misfire Detected
sounds like a new set of HT leads and plugs wouldnt go amiss(fire wires) weird name that fire wires HT stands for high tension leads in proper english .
Mar 07, 2011 | Ford F-150 Cars & Trucks
Aug 04, 2010 | Cadillac CTS Cars & Trucks
Apr 17, 2010 | 1997 Cadillac DeVille
Mar 06, 2010 | 2001 Cadillac Seville
Jun 06, 2009 | 1998 Cadillac Seville
58 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: