1993 Saab 900i No Fuel Pump or Coil Power

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ROBISTIND
  • MEMBER
  • 1 POST
hi
my name is robert and i am from australia,
i have a Saab 900i convertable. 1993 model
i had recently cooked my 2.1 motor on my saab because i drove it harder than i should have on a long trip.
i had then removed my 2.1 motor and auto transmission and replaced it with a 2.0 motor with auto transmission,
i took the manifolds off my dead 2.1 and put them on the 2.0.
i have put in the motor and plugged everything in.
but i am having a serious problem.
the motor will crank over no problem.
but the feul pump and coil are not getting power.
i have even wirel them up direct to the battery to try to get it started and still no success, but when i wire them up to the battery the pump does run and feul does get to the motor.
im not sure what my problem is, could you please help me if you have any idea what it could be.
regards
robert
Mar 8, 2006 at 8:36 AM
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PEPPERMRJ
  • ✓Experienced Mechanic
  • 1,158 POSTS
Did you check for a rollover switch to reset?
Possibly a crank position sensor problem.

Good luck and let us know. :)
Mar 10, 2006 at 11:41 AM
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Suggested Repair

Check whether a rollover switch needs to be reset, and inspect the crank position sensor. The engine cranks after the swap, but the fuel pump and ignition coil are not receiving power.

Conversation Summary

A 1993 Saab 900i convertible owner replaced a damaged 2.1 engine and automatic transmission with a 2.0 engine and automatic transmission, transferring the manifolds from the old engine. The replacement engine cranks, but the fuel pump and ignition coil do not get power. Wiring them directly to the battery makes the pump run and deliver fuel, yet the engine still will not start. The expert suggested checking for a rollover switch that may need resetting and a possible crank position sensor problem.

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