Can someone help me discover which type of injection system my car has!? I'm not sure whether it's an spi or an mpi. The car's a 1997 Mk3 Astra, 1.6 8v (Merit). Also, anyone know any easy ways to tune this de-tuned model?
A 1997 8v, then it will deffo be the spi version. The 1.6 8v mpi was replaced in 1995 by the 1.6 16v. They carried on producing the 8v as a economy engine I believe.
Although at one stage I think vauxhall turned the 1.6 8v 'economy' into multi point injection, although I think this was for the mk4 astras, and it was still tuned down.