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View Full Version : Ignition Timing

BunkMonkey
09-30-2007, 02:27 PM
I've got a '90 SR-5, Auto 4x4 pickup, 3.0 V-6 EFI and I need to set the timing. The ECI sticker is gone, nowhere be found. This truck has every freakin' option you could expect (P/S, P/B, air, cruise, P/W, P/DL, P/Mirrors, etc.). Any idea what the timing should be? Right now it's PAST 15 degrees BTC, and I'm getting 10 MPG, so I'm pretty sure it's WAAYY off.
bodo
09-30-2007, 10:26 PM
10 degrees with the jumper connected 8 without.
BunkMonkey
10-01-2007, 06:35 AM
Bodo, you ARE my hero!! I'll let you know how it goes.
bodo
10-01-2007, 08:25 AM
You really should buy a manual for your truck, it makes life so much easier.
subliminaltrips
10-01-2007, 02:53 PM
in fact here is one he can get for free..... :spanka:

http://personal.utulsa.edu/~nathan-buchanan/93fsm/index.html

its for a 93 but the engine is the same.
BunkMonkey
10-02-2007, 02:43 PM
Right now I only have a Haynes manual & the microfiche set. If I can get 15mpg or better, I'll keep the truck & get a good manual.
subliminaltrips
10-02-2007, 06:50 PM
:rolleyes: are you inbred or did you eat paint chips? the factory service manual is free in my last post..... but hey its your cash!
:dunno:
BunkMonkey
10-02-2007, 08:13 PM
Paint chips...I answered Bodo's post before I checked your link. And leave my inbreeding out of this. I'll have you know my ma & my sister is a very nice lady :-p
green goblin
10-03-2007, 09:15 AM
Bunk Monkey is too funny. BTW is there a free factory service manual for 85-86 pickups out there? Anyone?
bodo
10-03-2007, 11:42 AM
Bunk Monkey is too funny. BTW is there a free factory service manual for 85-86 pickups out there? Anyone?

Yes

http://www.fattshack.com/phpbb/viewtopic.php?t=49
green goblin
10-03-2007, 12:15 PM
Awesome link Bodo! Thanx
BunkMonkey
10-10-2007, 07:13 PM
And so it came to pass, in the City of Brotherly Love, that the timing on the 1990 SR5 was adjusted properly (10 degrees BTDC with the jumper) and the fuel mileage did increase from 10 to 15 mpg and there was much rejoicing.
bodo
10-10-2007, 08:31 PM
And 15mpg sucks when compared to other motors with more HP but is better than 10mpg.

Sorry I had to throw it in there because my wifes 95 gets 15.2 and it sucks.
BunkMonkey
10-11-2007, 02:20 PM
Oh yes, it does suck. Not as bad as 10 mpg but suck it does, just the same. I still have a lot of tweaking to do and I might see the high side of 20 on the highway. If this truck wasn't so damn cool, I'd have called it quits a while ago.