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If the ECU is from a '90 ... Posted by RS [Email] ![]() ![]() ![]() In Reply to: forgot to also mension..., LarsW900T, Sun, 28 Aug 2005 11:06:11 Members do not see ads below this line. - Help Keep This Site Online - Signup |
it's an LH 2.4. I'm running an LH 2.4 ECU from a '90 900T in my '89 SPG. The ABS system is totally separate from the FI system and won't trigger a CE light.
Now, if the ECU was from a '91 or later non-turbo and the connector from your '89 plugged right in, ther eare 2 things that would give you a check engine light:
- error associated with the AIC valve. The '91 and later non-turbo has a 3-pin AIC valve instead of the 2-pin AIC that the LH 2.4 cars have. There would probably be an error associated with the electrical incompatibility.
- error associated with the different TPS. The '91 and later non-turbos have a rheostat TPS instead of the switches that indicate fully-closed throttle and 95% open throttle in the LH 2.4 cars. That would also give you an error.
What's the part number on the ECU that you put in?
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