Dec 3, 2013 · To test your Jeep PCM (specifically JTEC and JTEC+ PCMs used in 97-04 TJs), follow these steps: 1. **Check Power Input:** Verify battery voltage (12V) is reaching the PCM at pins 2 …

Aug 18, 2015 · 26 Peak injector circuit voltage has not been reached (need to check computer signals, voltage reg, injectors) 27 Injector circuit isn't switching when it's told to (TBI) OR (MPI) injector circuit …

Dec 1, 2010 · I understand that once you turn off the engine after you have done a clear code causes the computer to throw a code if there is anything wrong. The car has been throwing a code that is …

Jun 27, 2018 · Jeep Wrangler (JL) has been plagued with all sorts of electronic and electrical problems since the vehicle launched in 2018. The vast majority of problems can be traced to the dual-battery …

Oct 12, 2012 · Jeep PCM (computer control unit) Issues Before you submit to replacing the PCM (Powertrain Control Module) as the computer is properly called by Jeep/Chrysler, here is a quick …

Aug 13, 2025 · 2.7 kg/cm ) by fuel pump outlet check valve and the fuel pressure regulator." " Fuel System Pressure Test 1) Relieve fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE. …

May 3, 2023 · Looking for diagnostic scan tool recommendations for your Jeep? Here are a few options discussed in the forum: * **Foxwell Elite NT510:** This bidirectional scan tool is mentioned as a …

Nov 22, 2014 · 01 Windstar message center check computer Jump to Latest 3.4K views 2 replies 2 participants last post by maagk Nov 23, 2014 M

Mar 26, 2012 · The check engine light codes 12, 33, and 24 on a 1995 YJ Jeep Wrangler often indicate a few potential issues. Code 12 can be disregarded as it often indicates a recent battery disconnect …

Sep 23, 2013 · If you're getting a P0136 code after replacing your O2 sensors, here's what to check: First, the code won't clear instantly; it can take up to 50 drive cycles, or you can disconnect the …