7A High Oil Pressure ( > 5 bar) & Dashboard Light After Rebuild

[PRY4SNO]

Hello all,

First start up of my engine after a prolonged down time + slight rebuild resulted in a strange noise (a tapping, or almost a pinging noise) and high oil pressure on gauge (past 5 bar) with the blinking/beeping red oil light on the dash. Car laboured to start up and the idle was low/rough.

Oil gauge only pegs far right after the car starts up, not when the key is on and motor not running.

Quick summary of work done:

- OEM (re-manufactured) power steering rack (edit: rack, not pump!)
- OEM crank pulley cog & harmonic balancer
- OEM flywheel and clutch bolts
- OEM gaskets (head/valve cover/exhaust/rear main seal)
- OEM distributor rotor & cap
- 034 spark plug wires
- 034 timing belt kit w/ water pump & thermostat
- 034 silicon rad hoses & aux. rad delete
- 034 street density motor & trans mounts
- 034 snub mount & bracket
- 034 phenolic IM spacer & gaskets
- 034 7A EFI upgrade kit w/ resistors
- ARP headstuds

I didn't touch the oil pump at all, other that to remove the oil temp sensor wire.

Any ideas would be greatly appreciated. My best guesses so far would be: faulty oil pump, backwards/stuck oil pressure relief valve, crossed connections at the oil pressure sensor, faulty oil pressure sensor.

Here's a quick list of links I've found so far on my search for possible solutions:

link 1

http://www.s2forum.com/forum/showthread.php?t=4750&highlight=oil+pressure+high

link 2

http://www.motorgeek.com/viewtopic.php?f=10&t=33895

link 3

http://www.motorgeek.com/viewtopic.php?f=10&t=17762

link 4

http://www.motorgeek.com/viewtopic.php?f=10&t=26197&hilit=+oil+pressure+sensor+

[Thuppu]

You have the oilsender wires backwards.

Edit. Hmm, maybe not, the gauge doesn't rise when ignition is on but engine stopped..? Well, check the wires anyway: http://www.s2forum.com/forum/showthread.php?t=52614

[PRY4SNO]

Thanks, that took care of the issue!