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Capacitors are a big one. They either dry out internally and look normal but don't work, or leak the corrosive filling everywhere which will short things out and slowly eat through the circuit board and the thin wires embedded in it. Anything 25+ years old will be prone to this eventually, but some problems are more common that others and it can happen much sooner. In my era Celica the two in the ECU that are part of the CEL circuit like to leak and cause damage to the injector drivers, and the ones that work the tach like to dry out so it bounces around like crazy. Both of my ECU's had them starting to leak when I pulled them apart and replaced all the caps a couple years ago.
Odds are most people who have been tossing aftermarket EMS into 20+ year old cars because it won't run quite right just needed new caps in their ECU.
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1991 Toyota Celica GTFour RC // 2007 Toyota Rav4 V6 // 2000 Jeep Grand Cherokee
1992 Toyota Celica GT-S ["sold"] \\ 2007 Jeep Grand Cherokee CRD [sold] \\ 2000 Jeep Cherokee [sold] \\ 1997 Honda Prelude [sold] \\ 1992 Jeep YJ [sold/crashed] \\ 1987 Mazda RX-7 [sold] \\ 1987 Toyota Celica GT-S [crushed]
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Originally Posted by maksimizer
half those dudes are hotter than ,my GF.
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Originally Posted by RevYouUp
reading this thread is like waiting for goku to charge up a spirit bomb in dragon ball z
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Originally Posted by Good_KarMa
OH thank god. I thought u had sex with my wife. :cry:
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