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Thread: 1992 Stealth RT twin turbo ECU issues

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    1992 Stealth RT twin turbo ECU issues

    Looking to find some help with an ECU problem. I've got a 1992 Dodge Stealth RT twin turbo with 20,000 miles. It came with the stock Mitsubishi ECU but developed a no-start issue. My mechanic said it was the ECU so we sent it out to repair and was told that it was non-repairable and needed to be replaced. I bought a Jester Plug and Play ECU that was supposed to work but when I installed it the car will not go over 2000 RPM's without bogging down plus it trips a check engine light. My mechanic pulled the codes and said it needed a new M.A.P. sensor but it still has the same problem of not going over 2000 RPMs without bogging and still has the check engine light. I unplugged the MAP sensor and it runs properly without bogging but it still has a check engine light. I won't be able to pass SMOG in CA with this.

    I found someone who repairs Mitsubishi ECU's (Foreign auto ECU repair) to have the original repaired but after he fixed it I'm still having the same no-start issue. The Jester still starts the car but doesn't run properly.

    I've been dealing with this issue for the last few months so any insight would be appreciated. Thanks.

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    Forum User Not Verified Feedback Score 2 (100%) RealMcCoy's Avatar
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    What is the code specifically? A 92 doesn't have a MAP sensor...


    Real Performance Automotive (541)816-4500 www.FB.com/RealPerformanceAuto

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    I'm sure he's referring to the MAF sensor. 9 times out of 10 if it runs better with it unplugged, you have a leak somewhere in the intake system.

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