I can't tell what that is in your hand. Have you been loosing any brake fluid? Was the air cleaner fouled? (I get you might not know that one). And, Wtf. are those grooves? Can you catch your finger-nail on it/them?

 

Is it an optical illusion or is part of your throttle butterfly missing?

What's that in your hand?

 

Ahh it's just the end of a flashlight I was holding.
And I just replaced my air cleaner because of the oil in it, so that's where the oil came from. Its smooth in the bottom just oily gunk in there
I didn't know what to do about it cause I thought it was bad. I may just idle the engine and spray throttle body cleaner in there

Cruiser- what's the throttle body butterfly?
I had already taken off my throttle body to clean it and the IAC which was in good condition. But I did press on its little button, I didn't know not to do that haha
My jeep still idles crapppy and dies pulling into parking spots and garages

 

Also, the little sensor thing ,right next to the IAC, it has a little moveable tab on it, I place it under the throttle body tab to make it move when the throttle moves right?

 

My cruise control doesn't work, could my vac ball be bad? Would that cause my problems I'm having?

 

Yes. The butterfly is the flap inside the throttle body that moves when you move the linkage. You know the TPS needs adjusting, right?

 

I do not, To what specs do I do that?

 

RENIX TPS ADJUSTMENT
Before attempting to adjust your TPS be sure the throttle body has been recently cleaned. It's especially important that the edges of the throttle butterfly are free of any carbon build-up.
IMPORTANT NOTE: With the Key OFF, and using the positive (red) lead of your ohmmeter, probe the B terminal of the flat 3 wire connector of the TPS. The letters are embossed on the connector itself. Touch the black lead of your meter to the negative battery post. Wiggle the wiring harness where it parallels the valve cover and also over near the MAP sensor on the firewall. If you see more than 1 ohm of resistance, or fluctuation in your ohms reading, some modifications to the sensor ground harness will be necessary. The harness repair must be performed before proceeding. I can provide an instruction sheet for that if needed.
MANUAL TRANSMISSION:
RENIX manual transmission equipped XJs have only a flat three-wire TPS mounted on the throttle body and it provides data input to the ECU. It has three wires in the connector and they're clearly embossed with the letters A, B, and C. Wire "A" is positive. Wire "B" is ground. Key ON, measure voltage from "A" positive to "B" ground by back-probing the connectors. Note the voltage reading--this is your REFERENCE voltage. Key ON, back-probe the connector at wires "B" and "C". Measure the voltage. This is your OUTPUT voltage. Your OUTPUT voltage needs to be seventeen percent of your REFERENCE voltage. For example: 4.82 volts X .17=.82 volts. Loosen both T-20 Torx screws attaching the TPS to the throttle body and rotate the TPS until you
have achieved your desired output voltage. Tighten the screws carefully while watching to see that your output voltage remains where it is supposed to be. If you can't achieve the correct output voltage, replace the TPS and start over.
Sometimes, after adjusting your TPS the way outlined above, you may experience a high idle upon starting. If that happens, shut the engine off and reconnect your probes to B and C. Start the engine and while watching your meter, turn the TPS clockwise until the idle drops to normal and then rotate it back counterclockwise to your desired output voltage.
AUTOMATIC TRANSMISSION: RENIX automatic transmission equipped XJs have a TPS with two connectors. There is a flat three-wire connector, same as the manual transmission vehicles have, and it is tested the same as the manual transmission equipped vehicles, as outlined above—FOR ALL ENGINE MANAGEMENT RELATED ISSUES.
However, the automatic TPS also has a square four-wire connector, clearly embossed with the letters A,B,C, and D. It only uses three wires and provides information to the Transmission Control Module. THIS SQUARE FOUR WIRE CONNECTOR IS USED FOR TRANSMISSION/SHIFTING RELATED ISSUES ONLY. Key ON, measure voltage between "A" positive and "D" ground. Note the voltage. This is your REFERENCE voltage. Back-probe the connector at wires "B" and "D". Measure the voltage. This is your OUTPUT voltage. Your OUTPUT voltage needs to be eighty-three percent of your REFERENCE voltage. For example 4.8 volts X .83=3.98 volts. Adjust the TPS until you have achieved this percentage. If you can't, replace the TPS and start over. So, if you have an automatic equipped XJ your TPS has two sides--one side feeds the ECU, and the other side feeds the TCU.
FOR AUTOMATIC TRANSMISSION RELATED ISSUES: Check the square four-wire connector side of the TPS.
If you have ENGINE ISSUES check the flat three-wire connector side of the TPS.
For those with a MANUAL TRANSMISSION--the TPS for the manual transmission XJs is stupid expensive. You can substitute the automatic transmission TPS which is reasonably priced.
Revised 09-22-2012

 

thanks cruiser! I need to pick up a ohmmeter and will do this tonight
but my tranny seems like its in perfect working order, can a non adjusted tps cause a rough idle and stalling?
thanks

 

What you need to understand with Renix is that the TPS has two different sides, one for the engine and one for the trans. Theresfore, one side can be bad and the other good. Test both.

 

Okay that make sense, thanks

 

Try plugging the tube the the EGR valve. (for diagnosis) It shouldn't be sucking all the time.

The cheap $5 HF meter actually works, at least for a while.

It's not imposable that wetness in your manifold is brake fluid, is why I asked about that. Not likely at all, but possible I think.

 

I think it's oil, from when my CCV was messed up and a ton of oil got pushed into my airbox, it doesn't look like brake fluid to me really
And the egr valve tube, is that the one that comes straight out of the egr vacuum thing below my intake tube?

 

Hey cruiser, this is what I'm getting when my ohm is set to 20m. Because I have never used one before I do not know what to set it to,
But here's the readings for all
20m=.01
200k=9.0
20k=8.95
All very steady readings

 

What are you checking? The sensor grounds? Did you wiggle wires?