Firing order for a 4 cylinder Saturn 1998 Class AD model 4 door. I am not sure if it's an SL SL1, or SL2.

The SL is the small 4 door
The SC is the 2 door Sport Coupe
The numbers refer to the engine. The all have a 1.9 liter. "1" is a Single Over Head Cam, 8th VIN will be an "8". "2" is the Dual Over Head Cam, 8th VIN will be a "7"

So a Saturn SL2 with be a 4 door with a DOHC 1.9 liter. SL1 will be a 4 door with a SOHC 1.9 liter. SC2 will be a 2 door with a 1.9 liter DOHC. SC1 will be a 2 door with a 1.9 liter SOHC.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

This is a pretty common problem on GM cars. Expensive to fix, and even harder to diagnose. Read this info found on this link. It will help you understand the problem and offers some good solutions to beat this yourself. Bypassing this terrible system is a lot better than trying to have it fixed. Instead of paying the dealer mechanic to stumble thru the system and charge you for unwanted items, do this yourself.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

1996-2002 SL/SL1/SL2
1996-2002 SL/SL1/SL2 Saturn
SL SL1 SL2 1996 1997 1998 1999 2000 2001 2002

No, you need a 96 through 98 engine, make sure the one you get is the same as yours, that is if you have an SL1 your donor car must be an SL1, SW1 or SC1 and if you have an SL2 then your donor car must be an SL2, an SW2, or an SC2. You can buy rebuilt engines for about 2000 with core exchange
might make more sense if you intend to keep it a while and if a manual then do the clutch while it is out.

same part should fit 96-99, call around to local junkyards. there are also some scavengers selling old saturn parts on ebay, contact one through an ad and put in a special order. usually a few old saturns being sold for parts on craigslist.

Is the Catullus converter located just before the muffler o a 1999 Saturn sl2

if it is an SL1 it has a SOHC 1.9L. Basically the same engine was in all saturns 91-99, just different heads. the Sl2 had double over head cam and the Sl1 had SOHC.

yes there is, be sure you order the correct one, dual overhead cam is usually a sl2 and a single overhead cam is a sl1.

please go to the web link for diagram and firing order. It is the correct one.
http://autorepair.about.com/library/firing_orders/bl-fo-4959.htm

What is the firing order for a 1998 Saturn 1.9L: 4-1-2-3.

Charlie

Your title got gut off 1996 Saturn SL-?

SL1
Original Equipment Size: 175/70-14

SL2
Original Equipment Size: 185/65-15