Recent content by cij805

I will try that, I just changed the injectors so I just assumed all the o-rings were good, but at this point I will try anything. Thanks. Also had a Bosch O2 sensor and saw a lot of people saying to use NTK so I got one of those, going in tomorrow. Sent from my iPhone using Tapatalk

Obviously I don’t know for sure that it’s not a bad cat, but seeing as if you search these forums for this same issue, it is common, and I highly doubt that a professional company like Magnaflow or Walker would stay in business very long if they were putting out that many defective products. It...

I have done the water mist as well as the Mopar CCC, and my lambda numbers show optimal A/F ratios, it runs great, and have checked for carbon in combustion chamber which is minimal after treatments. I have thought of the CAT possibly being defective but want to see if there is anything else...

No, no EGR on the ‘93...and the cat is a brand new 3-way. Checked fuel pressure today, 15 PSI with ignition in on position, 35 PSI at idle and 41 PSI with vacuum removed.

Yes, NOX is the only spot I’m failing on, and it would seem that I’m running lean but the O2 sensor is brand new and has also just been tested to ensure that it’s not faulty... Sent from my iPhone using Tapatalk

15 MPH: RPM-1987, CO2-15.0%, O2-0.0%, HC-15 PPM, CO-0.01%, NO-641 PPM 25MPH: RPM-1857, CO2- 15.1%, O2-0.0%, HC-13 PPM, CO-0.00%, NO-622 PPM

1993 XJ 4.0 Auto 4x4 Hello all, Been failing smog tests, and have tried pretty much everything, even got a brand new catalytic converter and though my numbers have improved, it still isn’t passing...come to find that the catalytic converter isn’t getting up to temperature (colder in the rear)...

Thank You, I’ll take a look in the morning. Electrical isn’t my strong suit, so fingers crossed! Sent from my iPhone using Tapatalk

Bueller....Bueller.... Sent from my iPhone using Tapatalk

1993 XJ 4.0 HO, Automatic, 4x4 I noticed today that my “PART TIME” light was dimly lit even when in 2H, so I thought maybe a sensor got stuck. So I shifted it from 2H to 4H as I have always done and it died immediately. So I left it in 4H and out the trans in park and it cranked and cranked and...

1993 XJ, 4.0 HO, Auto Trans My oil pressure gauge is pinned all the way to the right, so I assumed the Sending Unit was bad. When I search for the Oil Pressure Sending Unit in any part catalog, it comes up with a multi-pin connector. I assume this is because I have a gauge, but when I look...