low idle in drive

[mr.vang]

no it's not. the factory idle is 750 +/- 50rpm. if that's normal, your car is broken. if you put it in drive, the ECU will compensate by opening up the ICV a bit more, the idle shouldn't change and 500-600 is never "normal".

its normal for a 20 years old car.

[nando]

if yours is a total pile of shit? Yes. If it's running correctly? No.

[LJ851]

When my 89 was auto tragic the idle speed was the same in neutral as it was drive. This on 20+ years old car nearing 200k miles. It also stayed the same if you turned on the A/C. Those tricky germans!

[rede30]

figured it out. I tossed in a 173 DME and it is perfect.