Or even better, a log that shows whacky TPS readings.
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So, as of just now I have red blinky lights in sequence on the injectors, the injectors went to the flow bench and checked out, I have spark with the plugs out of the cylinder, but the car is still running on #1 and #4, I can unplug the center coil and it runs the same way. WTF is going on?
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Is there some way I could swap the coil firing order in the computer, then swap the wires, and see if the car will then run on #2 and 3?
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Stock coils or toyota coils?
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Originally Posted by Reverant
(Post 1129649)
Stock coils or toyota coils?
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If you have a spare set of plug wires from the white 1.8, the plugs will actually fit in the 2001 COPs, meaning you car rearrange the spark outputs if you get a little creative.
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Originally Posted by Reverant
(Post 1129723)
If you have a spare set of plug wires from the white 1.8, the plugs will actually fit in the 2001 COPs, meaning you car rearrange the spark outputs if you get a little creative.
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Tests and results I did today:
Injectors: Noid light blinks sequentially for all four, same brightness in test mode and when cranking with the fuel pump off All four injectors make clicky noise in test mode (injectors all flowed properly when tested a few weeks ago) Coil tests: All four make spark outside the engine when cranking Coil A&b both have 12v, ground, and 1v of trigger when cranking and in test mode. Swap coils and cylinders 2&3 never fire, regardless of which coil is plugged in (I have four to choose from) New plugs, again. TPS is still unplugged. |
Sounds to me like some sort of bad connection.
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Originally Posted by rleete
(Post 1132119)
Sounds to me like some sort of bad connection.
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At a loss here. Any locals with a 90-93 to test there?
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Originally Posted by Reverant
(Post 1132174)
At a loss here. Any locals with a 90-93 to test there?
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Okay, so when cold I have 120, 40, 30, 120 psi on a cmpression test in that order. with oil in the middle two that goes up to like 60psi. This is tested cold and #2 and #3 repeatedly had fuel wash-down when testing this stuff. Do I need to start looking at the engine for a problem? Would the plugs be ultra-clean and not burn at all if there were no compression?
This engine never drove like it was on two cylinders before this problem and the last lap it ran was the class record at ECR. |
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If you're sure you performed the compression test correctly on all four cylinders, WOT and 5 cranks, then your engine has a problem.
Edit: I wouldn't think fuel would lower the compression numbers by 75%, but I could be wrong. I've never had this issue and then performed a compression check. |
Originally Posted by curly
(Post 1132864)
If you're sure you performed the compression test correctly on all four cylinders, WOT and 5 cranks, then your engine has a problem.
Edit: I wouldn't think fuel would lower the compression numbers by 75%, but I could be wrong. I've never had this issue and then performed a compression check. |
Meh not an MS problem. Compression test speaks the truth time for a different motor
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How many volts should I get on the coil trigger?
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Originally Posted by Gt2560rMiata
(Post 1132909)
Meh not an MS problem. Compression test speaks the truth time for a different motor
Wouldn't there be some burn even on dead cylinders, indicated on the spark plugs? |
If you think its the rings being washed. Put an OZ of oil in each cly. Let it sit overnight, clear any oil still in the clys then retest compression
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