Troubles with my 93 Saturn

THATGURL518

MEMBER
1993 SATURN

1993 Saturn 1.9, 94000 miles, Automatic, My car will not start unless I push on the gas petal twice, and then push the petal all the way to the floor, and turn the key, and keep it there untill it starts. Then I have to rev it to 4500 rpm for 5 secs to keep it running, and then rpm goes down to about 3000 and after 20 sec. It goes down to 1500. Also, when I push on the gas petal it stalls, so I have to push on it once, and then push on it agian and then it will go. (Note: its not a stick) It also has really rich exhaust. There are no signs of anything wrong under the hood.
A week ago I got codes, 26 & 72 and also another one that said something about having rich exhaust. Ever since I got this car in Dec of '06, it has progressively gotten worse. If you could help me out, I would really appreciate it. Thank you!

2 Replies

SERVICE WRITER

MECHANIC
9,123 POSTS

I would pull out the coolant temperature sensor and check it for a crack. REal common.

You can see the crack on the left side, looks blue.

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Friday, March 23rd, 2007 AT 6:25 PM

PEPPERMRJ

MECHANIC
1,158 POSTS

Congrats on the new Satty. Love those S cars.

The coolant temperature sensor is a common problem as Servicewriter states. Replacing it with an updated brass tip model from your saturn dealer should solve your starting, rich running, and crazy idle issues. You can find them for under twenty dollars. Also check the connector as they tend to corrode.I have posted a detailed step by step if you would like to tackle this by yourself or with friends. Just do a search of my prior posts or for ECTS.

They normally do not set a code tho, so you might have another issue. Don't know of a code 72. Code 26 Quad Driver Output Fault refers to probems with EGR, Coolant fan/light, evap purge solenoid, and the AC.

Change the temp sensor first then recheck the codes.

I will also recommend a few preventitive maitenence items that will keep you and your satty happy for years to come.
Clean the throttle body including the idle air controll valve.
Clean the EGR valve pintle, seat, and passage.
Change the tranny fluid and filter at the recomended intervals in the owners manual.
Lastly Check the oil often!

Good luck and let us know. :)

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Friday, March 30th, 2007 AT 11:32 PM