 car idling high, after installing distributor |
 Sep 22, 2013 - 7:39 PM
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Enthusiast  Joined Mar 28, '10 From Milwaukee, WI Currently Offline Reputation: 3 (100%)  |
Have a 1998 Toyota Celica 2.2 5sfe. After installation of distributor car idles at 2000 rpms. I read that the ecu is suppose to adjust the timing is this not true and is this my problem?
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Sep 22, 2013 - 11:58 PM
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 Enthusiast Joined Oct 29, '11 From Haltom City, Texas Currently Offline Reputation: 1 (100%) |
Umm, I dont think the ecu will 'set' the timing. It just makes slight adjustments based on readings from the knock sensor. Realize that the ECU varies the time at which the ignition coil fires, it cannot change when the rotor physically passes the contacts within the distributor cap.
Base timing must be set with the E1 and TE1 contacts jumpered in the OBD1 diagnostic port that is near the brake/clutch mastercylinders under the hood. Use a timing light to set the base timing to 12 degrees BTDC. At least this is how it is on my 94 GT, but it could be different on the 98 because I believe you have a crankshaft position sensor the older models dont have. Is it possible to rotate the distributor once you loosen the two bolts attaching it to the head, or are the bolt-holes not slotted so that you cant rotate the distributor? |
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Sep 23, 2013 - 10:22 AM
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 Enthusiast Joined Jun 5, '07 From Santa Maria Currently Offline Reputation: 1 (100%) |
QUOTE (Special_Edy @ Sep 23, 2013 - 5:58 AM)  Umm, I dont think the ecu will 'set' the timing. It just makes slight adjustments based on readings from the knock sensor. Realize that the ECU varies the time at which the ignition coil fires, it cannot change when the rotor physically passes the contacts within the distributor cap. Base timing must be set with the E1 and TE1 contacts jumpered in the OBD1 diagnostic port that is near the brake/clutch mastercylinders under the hood. Use a timing light to set the base timing to 12 degrees BTDC. At least this is how it is on my 94 GT, but it could be different on the 98 because I believe you have a crankshaft position sensor the older models dont have. Is it possible to rotate the distributor once you loosen the two bolts attaching it to the head, or are the bolt-holes not slotted so that you cant rotate the distributor? 96 and up you cannot adjust the timing. 94-95 you can turn the dizzy. If he has a 94-95 dizzy he could in theory adjust the timing but over time the ECU will adjust it. Easiest thing to do would be to check the timing to verify it is where it should be. --------------------  |
Posts in this topic
JPATTT car idling high Sep 22, 2013 - 7:39 PM
ILoveMySilly97 Obdii does adjust its timing by itself. Maybe try ... Sep 22, 2013 - 8:05 PM Box Like Silly said, try resetting the ECU first. Ano... Sep 22, 2013 - 8:29 PM JPATTT Just reset my ecu and no change still idles at 200... Sep 22, 2013 - 8:32 PM Box After warming up does the idle drop down? Sep 22, 2013 - 9:41 PM
Box I was kind of wondering about that myself. Surely... Sep 23, 2013 - 2:55 AM JPATTT Unfortunately no adjusting bolts. Just one bolt an... Sep 23, 2013 - 9:23 AM
Bitter Check for any cracked or broken or loose vacuum ho... Sep 24, 2013 - 7:45 AM |
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