Chrysler Voyager march 2002 3.3L

Question

checked TPS,CET,MAF,IAT all out of spec, have continuity to ground with ign OFF and no continuity with ign ON, car cranks no spark....thanks

Answer 1

The TPS MAF IAT if all these circuit coded circuit high you have no ground for , the ground that is common for it is called K900 which is known as circuit ground, which is a ground that the ECM gives , I do not under stand CETS and what it stands for, Here is a tps  diagram ,The sensor ground is from the ECM which is known as K900 which supplies the ground for the IAT,ECT,MAF, TPS here is a CKP (crank position sensor it sensor ground is from the ECM. Test the ECM key on it should read ground if it does not it is either a failed ECM or the ECM is not properly grounded or missing a ground connection.