Dickinson County Comanche Posted September 23, 2021 Share Posted September 23, 2021 Hey all. So I just recently put the engine in the Comanche and as I was putting brake fluid in last night I noticed it had a decent vaccum leak at the map sensor. After fixing it, it seems as if it runs just as rich as before. What would cause that? I know my EGR is bad but I can’t find any replacements or ways to block it off. Engine idles both cold and warm at ~1100rpm and will backfire occasionally when shifting gears. Things I have checked, installed or verified: New injectors IAC TPS and it’s adjustment MAP sensor vaccum leaks coolant temp sensor Things I haven’t checked manifold temp sensor any help is appreciated Link to comment Share on other sites More sharing options...
87MJTIM Posted September 23, 2021 Share Posted September 23, 2021 I’ll say it before anyone else: perform Cruiser’s Renix tips first. Next, purchase Nickintimedesign’s Renix Engine Monitor (REM). the idle is to high. It should be ~750rpm. Probably a vacuum leak. Check all hoses and tighten the manifold bolts. Running rich maybe from prior vacuum leaks. The ECU may need to adjust the fuel trim. The REM will help identify other issues with the engine components operation Link to comment Share on other sites More sharing options...
Dickinson County Comanche Posted September 23, 2021 Author Share Posted September 23, 2021 I’ve heard good things about the REM, so I’ll definitely have to look into getting one. Does he have a website or should I contact him directly? Link to comment Share on other sites More sharing options...
87MJTIM Posted September 24, 2021 Share Posted September 24, 2021 nickintimedesign.com Link to comment Share on other sites More sharing options...
cruiser54 Posted September 24, 2021 Share Posted September 24, 2021 Go to www.cruiser54.com. complete Tips 1 through 5. Make sure all your intake manifold bolts are snug. Link to comment Share on other sites More sharing options...
fiatslug87 Posted September 24, 2021 Share Posted September 24, 2021 Check your O2 sensor, resistance between A & B should be 5-7 ohms. Link to comment Share on other sites More sharing options...
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