Editing Forums/Z31P/z31-repairs-forums engine-mechanical/Exhaust smells of heavy gas.....

{{ForumImport
|op_user=Spazzymcgee
|op_date=2019-01-13 18:56:46
|post_count=7
|archive_url=/Z31performance_archive/forum/z31-repairs-forums/engine-mechanical/542113-exhaust-smells-of-heavy-gas.html
}}

'''Spazzymcgee:''' <small>(2019-01-13 18:56:46)</small>

Sooooo can not seem to figure this situation out for the life of me.. Got new rack&pinion put in and when I go to start up I get the usual normal startup but a HEAVY smell of fuel out the back....

Any thoughts?

----
'''JSM:''' <small>(2019-01-14 01:01:28)</small>

Doubtfully related.

----
'''Spazzymcgee:''' <small>(2019-01-14 01:40:08)</small>

Well yes I know this but ideally what would cause this smell to randomly just start. I've never had this happen on any of my other Zeds.

----
'''Z_Karma:''' <small>(2019-01-14 02:24:36)</small>

Two thing off the top of my head:

Leaking FPR: A failed diaphragm can cause this. Pull the vac hose from the top of it and see if it smells like raw fuel.If it does, replace the FPR.

Leaking injector: Inspect the sparkplugs and see if one of them are wetter than the others with raw fuel.

Or install new plugs and take a drive for a few miles then pull them and see which one fouls first.

The FSM has a injector test procedure too,

My 84T has a leaky fpr that I've been neglecting replacing until the weather warms up.

----
'''JSM:''' <small>(2019-01-17 03:51:28)</small>

Failed CHTS too if itâs just exhaust fumes your smellling

----
'''drnict61:''' <small>(2019-01-23 18:59:37)</small>

A faulty or missing O2 sensor will cause an excessive rich condition, too

----
'''Dunkine:''' <small>(2019-01-30 01:17:37)</small>

Did you check the ecu for codes?