DaveT
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Posts posted by DaveT
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I haven't had a problem with the OEM headlight wiring / switches. The starter switch / or it's wiring yes. i added a relay for both of my cars. The current is higher in the start wire, and the load is inductive, which is far worse on the switch than headlamps.
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Did you apply anti seize? That will slow it - regardless of the bolt metal.
The corrosion won't happen dry, but if water gets in there, that's when the corrosion starts. -
I would be VERY wary of using stainless bolts in aluminum. The corrosion that happens between the 2 metals is WAY worse than rust from steel bolts.
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Yeah, since the 2 known temps were in range, and the drift while it cools was normal, I'd say it's ok.
I found it, searched for ohms -CTS Test - put the sensor in a pan with some water, on a stove top. Use a thermometer and an ohm meter.
It took a while, looking through my FSMs and finding my old notes -
Water temp sensor ohms
14F 7000 - 11500
68F 2000-3000
122F 700-1000Above are from the FSM.
Below are actual measurements. Done at 2 different times, compiled here. The 1990 unit was in a good running engine. The new dealer unit was bought locally, and I made the measurements before installing it to get the extra reference points.
measured ohms
temp 1990 used new dealer unit
77F 2390
122F 1154 1098
185F 400
190F 454-
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Mine was exactly that, a diagnostic panel. No way to put that many gauges and indicators on the dash. Plus it would be crazy making when just driving around normally.
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There was a time I was seriously considering building a gauge and simulation panel that would plug in between the ECU and the harness.
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Yes, this is correct.
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Get the engine up to operating temp.
Shut down.Disconnect the connector.
Connect an ohmmeter to the sensor leads [it has 2 wires].Watch the ohms. take note of the hot, and look every 10 minutes or so. And for a while every so often. What you want to see is a slow rate of change, not jumping around crazyness.
Somewhere on this forum I have posted some typical numbers and temps. The exact values are not super critical, but the general slope and smooth change is.
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Get the whole block & head up to normal operating temp, 170-200 F - check with a meat thermometer, thermocouple, or IR thermometer.
I usually do this by running it before I loosen the bolts. When I am working on a non runnable, I've used an old style space heater along with a heat gun to get enough heat. You don't want hundreds of degrees in one spot, you want operating temp deep inside, where the threads are. So it takes a while to get it there.
Then proceed like moosens wrote. I have yet to snap a bolt when using this trick. And some of them were incredibly stuck & corroded.
One thing that's tricky to learn, but if you can - get to know the feel of a bolt springing as you twist, vs yielding, which is what happens right before it snaps. You can push them into the springy area, but once you get to the yield, the fatigue leads to breaking them. -
Use an image editor to reduce the resolution.
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The main idea is that the fuems get absorbed by the charcoal when the car is sitting, and fuel is evaporating. When the car is running, air is sucked through the charcoal into the intake to burn the fumes. For testing or delete, you want to cap the lines that have vacuum. Might make sense to try to catch fuel that's coming out there, because that isn't normal. I'd want to know how / why.
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I'll have to check the spares - the cars have low mile OEM ones on them right now.
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A couple things -
The CTS can fail in a way that doesn't cause the CEL to light up, or generate a code - Causes weird idle speed variations, and some poor drive ability issues.
If the fuel pressure drops below 21 PSI for a SPFI, it will get very messed up - can't get any power, poping unsteady running.The solenoids run hot. The EGR solenoid - during warm up, it disable the EGR Valve. That's it, that's all it does. I have never had any drive ability issue from that solenoid's most common failure mode, which is the coil burns out failing open. And the ECU code 34 is displayed. I never had as much trouble with the purge solenoid, so I don't know how much it can mess with anything. The canister may not do it's function, but mine are all 30 years old +/- and the cars run fine.
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I had one rebuilt at a local driveshaft specialty shop. I'll have to double check, but I am pretty sure they used snap rings, no welding.
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I am fairly certain that in the original EA82 setup, the signals from the distributor go to the ECU, and it adjusts the timing of the signal that fires the coil. The ECU takes care of advance / retard / RPM & emission / temperature based tweaking.
For a carb conversion, I am pretty sure you will need a vacuum advance, so an older points type distributor.
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When an automatic slips, immediately check and add fluid if its low. It's really bad to keep going.
After you refilled it, is it still full?I am pretty sure that the governor gear core problem won't stop it from moving, it would just mess up the shift points. I have not had a governor gear problem.
I have had vacuum modulators leak fluid into the intake more than once.
I had one of the tubes on the control system fall out, that made it loose reverse and 3rd, or something like that.I had the pump shaft spline strip out, and that leaves you powerless, no gears at all.
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Every time I have seen this it was one of the alternator brushes.
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I got an L shapes hex wrench for those plugs years ago. Never had a problem getting them out.
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A for real hex key wrench gets those plugs out no problem.
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They are not precision, so it can be off by a bit. The ECU is not super high tech, so I doubt it would set a code for something like that. I know it won't for a 180 degree thermostat. The OEM ones are around 190.
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I haven't seen a code 21.... I've had a bad CTS sensor that was intermittent and caused the idle to be all over the place. You want to watch the ohms while it cools down, it should change smoothly.
A loose or corroded connection could be messing with the ECU also.
Note, since I have seen some confused by this - the CTS is the 2 wire sensor on the thermostat housing, that the ECU uses to know the engine temp. It has nothing to do with the 1 wire sensor for the gauge, if you have one.
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I would probably want to take the heads off and check everything. It's probably due for new headgaskets and all the seals from there up anyway.
From all the sitting, it could be rust, from all the bad fuel, maybe gunk. There could be other things that need attention, like cylinders, rings, other valves.
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That is not correct at all. The valves open and close 2000 times per minute at 4000RPM, which is not even the top RPM of the engine. The springs should be pretty darn tough to compress also. Valves should have very little drag opening or closing. [with the springs removed]
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Starting moving going straight, ok. Not all the time on. When you mention auto - do you mean this is an automatic transmission?
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Exhaust manifold gaskets
in Old Gen.: 80's GL/DL/XT/Loyales...
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Worst case, you might have to remove the support bolt that hangs it from the transmission.