View Single Post
Yellowb1rd Yellowb1rd is offline
Registered
 
Yellowb1rd's Avatar
 
Join Date: Oct 2007
Posts: 363
S4 not starting at all....

Pelicans....

I could use some insight here. After replacing my 89 motor with another S4 motor, the car will not start at all. I crank it over and over again, and it wont even attempt to fire. Also replaced the battery, the knock sensors, crank position, and a plethora or other stuff while the motor was out. I have updated CPUs in the EZK and LH, and have shark tuned with basic settings to get it started. Here is the profile:

Rotrex supercharger @ 6lbs.
36LB injectors

some facts:
the engine is getting fuel
the engine has spark (at both distributors).
NOID lights show that injectors are working (correct pulse)
Engine has compression
Original motor started and RAN with the same injectors, and SAME EZK and LH Eproms (no supercharger connected at that time).
I've verified that connectors on positive terminal are snug
There are two clicks when turning on the ignition (not continuous clicks, which indicates a bad LH)
Reground cams to original factory specs
Replaced ignition, and fuel pump relays.
Removed the fuel pump relay - Jumped the 30 and 87 contacts, and fuel pump ran constantly as expected, but car still did not start.

Other than replacing the motor, no other changes have been made. Any insight would be appreciated.

Last edited by Yellowb1rd; 06-03-2014 at 07:51 PM..
Old 06-03-2014, 07:25 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)