bad compression

Topic: bad compression (Read 2858 times) previous topic - next topic

bad compression

Reply #15 – October 17, 2013, 05:02:12 AM

You are chasing BALLOONS running codes is a waste of time as that ECM is not that sophisticated. And fuel in the OIL is a mechanical or outside issue other than the ECM or a balance test. A balance test is used for cylinder balance not an over rich issue. Chasing Balloons is something that people do on a regular basis.

bad compression

Reply #16 – October 17, 2013, 06:27:44 PM

unless he had a bad injector, then the balance test would have told him that. now he knows its a regulator.

bad compression

Reply #17 – October 17, 2013, 07:45:35 PM

If he had a bad injector the second he drove it one block he would know it!!!!

bad compression

Reply #18 – October 17, 2013, 08:10:01 PM

on a 2.3, yes. on a 3.8 or 5.0, probably not.

bad compression

Reply #19 – October 18, 2013, 10:11:25 PM

i did a fuel pressure test and it was at 28psi while at idle when i disconected the vacuum line going to the fpr it increased to 38psi turbotbird.com says the fuel pressure should be at 35-45psi at idle im starting to think its an injector if i adjusted the fpr and increased the pressure i dont see how that would help keep fuel out of the oil what do you guys think it is

bad compression

Reply #20 – October 20, 2013, 10:27:16 AM

earlier you smelled fuel inside your vac line for the fpr.

your fpr needs replaced.

why it would be a possible cure to your issue is this.......

when your injector gets its ground from the EEC, its internal shaft moves a check valve to let the "regulated amont" of fuel pass through for only the amount of time the EEC supplies the ground.

if your FPR is faulty, faulty in a way that you have too much fuel presure present at each injector, then your unburnt full that sneaked by inside the injector has to go somewhere.

thats my theory,,,,,

bad compression

Reply #21 – October 20, 2013, 10:30:33 AM

if you have a held pump vac gauge, does the regulator hold vac pressure?

or

if you simply put a vac line on the regulator, the suck on the other end ,, and then does the hose stick to your tongue? and stay put?

if not the diaphram inside the regulator is done.

bad compression

Reply #22 – October 28, 2013, 10:25:19 PM

it was the fpr threw one on from autozone and its not runnin as rich the oil pressure has gone up and no more fuel in the oil thanks for the help