So i checked and all the fuses are good and i get a good ground at every point on the block on both sides. I am curious if one of the sensors is way off. What are the base line readings for the different sensors? The one that has me curious if the MAP (kPa) as it is high in its range at 100. Is that normal?Originally Posted by edcmat-l1
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Also the Speed is showing 158, how do I fix that?
Ok i noticed a couple of things weren't tight so I tightened some bolts on the throttle body and driver head cover. I also removed and cleaned the MAP sensor and reinstalled from the intake and now it doesn't slap but it idles really high and when i give it gas it responds but the O2s are bouncing around, both sides of the engine getting warm.
Cj7 Log File 1-6-24.hpl
I believe the kPa is relative to where you live. Higher around sea level. 450mv for O2 baseline so those look ok @ KOEO.
Last edited by LS ROB; 01-06-2024 at 09:18 PM.
Bet both banks header tubes are hot now.
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They are I did reseat the spark plug cables and she ran for a minute but got hot cause my fan didn?t come on. am cleaning injectors today and getting the fan wiring sorted and checking the exhaust for a leak and will try again.
Good deal. The "knocking/slapping" you heard was possibly just the plug wires arching from loose connection.
Productive day today. Wired in the Radiator Fan, I picked the Fan 2 wire instead of the Fan 1 wire. I can manually turn it on in the VCM Scanner before I start the car to ensure I have good airflow, but ideally I will want it to come on as needed in the tune. Just the one fan, if I need to switch it to Fan 1 I can but would like to keep it on Fan 2 if possible. I did an exhaust leak test and could not find any leaks. I pulled all the injectors and did a bench test and clean and they were all good after being cleaned. Can't say if they were clogged, because they weren't when I finished. Reinstalled them, not really paying attention to orientation so likely didn't go back in the same spots. When I ran the motor today, 1. no knocking 2. LTFT spiked to 29 and eventually the B2 side came down, but B1 stayed close to 29. It ran actually pretty quiet but started off with a fair amount of smoke coming from the tail pipe, which lessoned the longer it ran. Not sure if that is due to the exhaust having no CATS or the LTFT issue. it idled ok around 800-900 but sometimes sounded like it was going to die but never did. Throttle response from the pedal was good. Not sure what to test next or if I need to make changes in the tune for the shorty headers on the block or K&N air filter or lack of CATS from the exhaust. It ran decently I feel close to being able to tune it to be smoother.
I hope she ran a minute actually means 10 minutes. No way it should need a fan in 1 minute.
Didn't "need" a fan, but since my ECU isn't turning it on i manually turned it on as I started the motor to ensure it didn't overheat.
A few questions and comments...
1) why is your idle so high? Seems to be in the 3k+ RPM range?
2). Your fuel trims are suggesting MAF and/or VE tables are way off as it's commanding 8-18% more fuel.
3) Bank 1 and Bank 2 fuel trims are not even, suggesting something else may physically be wrong. B1 seems to be demanding more fuel and B2 is demanding less.
I would first make sure there are no header leaks as that will cause a big issue. If that doesn't resolve anything you may need to check all plugs are firings, all injectors firing, make sure rockers/lifters aren't broken, possibly do a compression test for all cylinders, etc...
New day new info. Ok so today I rechecked the manifold to make sure it was torqued to spec and that it wasn't the cause of a vacuum leak or excess air. It was loose and I made sure it is tight now. I have a compression testor coming tomorrow so a next test will be to test compression on my cylinders and look for a leak there.
Cj7 Log File 1-8-24 2.hpl
Cj7 Log File 1-8-24.hpl
Cj7 Log File 1-8-24 3.hpl
What do you mean by causing back pressure?
That is an old post at this point. That is no longer an issue, i believe at that time we were trying to figure out what was causing a slapping sound and determined the plug boots weren't seated properly
Gotcha. From the log you posted, you may want to look at bank 1 (driver side) to see why its running much leaner than the other. Is it possible one of the injectors didn't seat all the way?
1) Still seeing imbalance between the fuel trims on the banks.
2) I'm seeing Long Term fuel trims maxing out at 30%, so fueling is still off.
3) Your Accelerator Pedal seems stuck at 19%, accept for the few spikes where it looks like your momentarily pressed it.
Also, add these additional channels to your logging and make sure to reset your adaptives before logging. If you're making changes/fixes to the engine we want to make sure the computer isn't having to unlearn bad and have that show up in the log.ls3 channels 1.8.2024.Channels.xml
How do I reset adaptive?
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