Question about 1997 Toyota Camry
My Camry ran great until I pressure washed the engine compartment. I dried every thing out. Then changed the plugs and wires and one coil. Prior to changing cylinder 2 and 1 coil, only cylinder 2 was missfiring after changing coil, 1,3,and 5 are miss firing. I've been cleaning sensors and unplugging them, used starting fluid to clean conections and left them unplugged for 2 days, I also checked the timing belt and everything lines up right. I also swaped O-2 sensors from front to back to see if that would change anything, but no changes. I checked for vacuum leaks and there were none. If you unplug #1 injector plug it doesen't change the way it idols.
Posted by Anonymous on
You cannot change oxygen sensors from front to back as they are 2 completely different units doing completely different jobs
the problem is water in the electronics and you use a dewatering fluid ( wd-40 or like ) to disperse the water not starter fluid
Posted on Apr 02, 2017
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Posted on Jan 02, 2017
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Posted on Jan 05, 2009
i would first check the timing and if that does not fit i would take the cover back off and look at the belt for a bad or missing tooth
Posted on Feb 14, 2009
SOURCE: 94 camry. 2.2 fed emissions.
Before we both knock ourselves out with fuel injector testing. Hook up a Digital voltmeter (DVM) to upstream O2 sensor and lets see how she is burning. Remember positive lead of DVM to signal wire and negative lead to ground. Anything above 550 mV is rich anything below 350mV is lean. Be mindful that an exhaust leak the size of a pin hole in this region can cause a rough idle. A healthy reading should bounce between 550mV and 350 mV.
Next to test is O2 is working block off air in take making mixture rich and see what O2 says about it . Then pull off a vacuum hose (a lean condition) and see if DVM drops to 200to 300mV's.
Keep me posted.
Posted on May 10, 2010
SOURCE: 1989 v6 camry engine missfire
no your problem is definately the dizzie cap, as i found out to my cost on a lansia beta. any kind of crack in ur dizzie will cause probs. best way to find out is park your car in the dark open bonnet with engine running then get a mist spray with water in it spray at dizzie and you will see a slight yellow arc around the crack! any crack in bakelite distributors leads to loss of one or more banks
Posted on Jun 11, 2010
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Sep 04, 2014 | 1998 Toyota Camry
Mar 18, 2014 | 1996 Toyota Camry
PO171 OBD2 Code basically this means that an oxygen sensor in bank 1 has detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1. The P0171 is one of the more common trouble codes.
his code is triggered by the first downstream (front) O2 sensor. The sensor provides a reading of the air:fuel ratio leaving the engine's cylinders, and the vehicles powertrain/engine control module (PCM/ECM) uses that reading and adjusts to keep the engine running at that optimum ratio of 14.7:1. If something is not right and the PCM cannot maintain the 14.7:1 ratio, but rather there is too much air, it triggers this code.
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