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CarGuru > Jeep Willys > Code 45 2 November 2005 18:58:54

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Code 45

Ed Wojciechowski 8 March 2005 17:45:34
 I have a 96 ZJ with 154K onit. My question is, how can I get a code 45,
when I don't have turbo? Also, how hard is it to replace the switch on or
near the gear shift?
Add comment
Shades 2 November 2005 04:51:38 permanent link ]
 '87 Chevy G20 Van...1000RPM when cold, 15-1700RPM when warmed up, starts
great, good vacuum, great power...

Got a code 45 which is a rich condition(at the O2 sensor). What specific
areas does everyone think(or know) I should look at before changing the O2
sensor(if needed).

...Injectors, MAP sensor, IAC solenoid, TPS, FPR, fuel filter, Fuel pump,
cap and rotor...all good. New EGR valve, EGR solenoid, and timing set.
Plugs look great and wires all have good Ohms. I should probably change the
plugs and wires before the snow falls though huh?


What's everyone's ideas, opinions, and experiences about this?


Add comment
Charles Bendig 2 November 2005 06:24:10 permanent link ]
 Shades wrote:> '87 Chevy G20 Van...1000RPM when cold, 15-1700RPM when warmed up, starts > great, good vacuum, great power...>
Got a code 45 which is a rich condition(at the O2 sensor). What specific > areas does everyone think(or know) I should look at before changing the O2 > sensor(if needed).>
...Injectors, MAP sensor, IAC solenoid, TPS, FPR, fuel filter, Fuel pump, > cap and rotor...all good. New EGR valve, EGR solenoid, and timing set. > Plugs look great and wires all have good Ohms. I should probably change the > plugs and wires before the snow falls though huh?>
What's everyone's ideas, opinions, and experiences about this? >

The high idle when warm should be your clue. Fuel Injected vehicles
idle Higher when they have a vaccume leak, where as carburated vehicles
idle lower.

Warm in gear I beleave the idle for that van (check the emmissions
decal for better info) should be about 750 to 850 RPM's.
The van probably has a thermial vaccume switch on the thermostat
housing. Test by plugging vaccume lines together and let vehicle get up
to operating temp. if Idle drops to a more normial range, the thermial
switch is bad. If no change, try running a new vaccume hose from the
destination of the switched vaccume.
Charles
Add comment
Shep 2 November 2005 17:18:33 permanent link ]
 Engine temp sensor not sending the proper warmed up temp to the ecu can
cause a rich mixture and not set a temp sensor code, a scanner will reveal
this.
"Shades" <shades_1970(at)net­ins(dot)net> wrote in message
news:44qdnQzebew_hv­XeRVn-rw@rapidnet.co­m...> '87 Chevy G20 Van...1000RPM when cold, 15-1700RPM when warmed up, starts > great, good vacuum, great power...>
Got a code 45 which is a rich condition(at the O2 sensor). What > specific areas does everyone think(or know) I should look at before > changing the O2 sensor(if needed).>
...Injectors, MAP sensor, IAC solenoid, TPS, FPR, fuel filter, Fuel pump, > cap and rotor...all good. New EGR valve, EGR solenoid, and timing set. > Plugs look great and wires all have good Ohms. I should probably change > the plugs and wires before the snow falls though huh?>
What's everyone's ideas, opinions, and experiences about this?>



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Add comment
Shades 2 November 2005 17:25:08 permanent link ]
 Good point...I will check it! Thanx!


"Charles Bendig" <rarepartshunter@ya­hoo.com> wrote in message
news:ujW9f.119471$t­D4.105785@tornado.oh­iordc.rr.com...> Shades wrote:>> '87 Chevy G20 Van...1000RPM when cold, 15-1700RPM when warmed up, starts >> great, good vacuum, great power...>>
Got a code 45 which is a rich condition(at the O2 sensor). What >> specific areas does everyone think(or know) I should look at before >> changing the O2 sensor(if needed).>>
...Injectors, MAP sensor, IAC solenoid, TPS, FPR, fuel filter, Fuel pump, >> cap and rotor...all good. New EGR valve, EGR solenoid, and timing set. >> Plugs look great and wires all have good Ohms. I should probably change >> the plugs and wires before the snow falls though huh?>>
What's everyone's ideas, opinions, and experiences about this?>
The high idle when warm should be your clue. Fuel Injected vehicles idle > Higher when they have a vaccume leak, where as carburated vehicles idle > lower.>
Warm in gear I beleave the idle for that van (check the emmissions decal > for better info) should be about 750 to 850 RPM's.> The van probably has a thermial vaccume switch on the thermostat housing. > Test by plugging vaccume lines together and let vehicle get up to > operating temp. if Idle drops to a more normial range, the thermial switch > is bad. If no change, try running a new vaccume hose from the destination > of the switched vaccume.> Charles


Add comment
Shades 2 November 2005 17:25:26 permanent link ]
 ALSO a good point...I will check that too!


"Shep" <djsljsrn@capital.n­et> wrote in message
news:1130941279_341­3@spool6-east.superf­eed.net...> Engine temp sensor not sending the proper warmed up temp to the ecu can > cause a rich mixture and not set a temp sensor code, a scanner will reveal > this.> "Shades" <shades_1970(at)net­ins(dot)net> wrote in message > news:44qdnQzebew_hv­XeRVn-rw@rapidnet.co­m...>> '87 Chevy G20 Van...1000RPM when cold, 15-1700RPM when warmed up, starts >> great, good vacuum, great power...>>
Got a code 45 which is a rich condition(at the O2 sensor). What >> specific areas does everyone think(or know) I should look at before >> changing the O2 sensor(if needed).>>
...Injectors, MAP sensor, IAC solenoid, TPS, FPR, fuel filter, Fuel pump, >> cap and rotor...all good. New EGR valve, EGR solenoid, and timing set. >> Plugs look great and wires all have good Ohms. I should probably change >> the plugs and wires before the snow falls though huh?>>
What's everyone's ideas, opinions, and experiences about this?>>
----== Posted via Newsfeeds.Com - Unlimited-Uncensore­d-Secure Usenet > News==----> http://www.newsfeed­s.com The #1 Newsgroup Service in the World! 120,000+ > Newsgroups> ----= East and West-Coast Server Farms - Total Privacy via Encryption > =----


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RJ in WV 2 November 2005 18:58:54 permanent link ]
 Coolant temperature sensor, if it has one. I think it's another one of the
gadgets that helps the computer to set the idle mixture. If it tells the
computer it's zero degrees when it's not, then the mixture is going to be
richer than needed.

I hope I got that right, I'm sure somebody will help me out on it if I
didn't.

RJ in WV


"Shades" <shades_1970(at)net­ins(dot)net> wrote in message
news:44qdnQzebew_hv­XeRVn-rw@rapidnet.co­m...> '87 Chevy G20 Van...1000RPM when cold, 15-1700RPM when warmed up, starts > great, good vacuum, great power...>
Got a code 45 which is a rich condition(at the O2 sensor). What > specific areas does everyone think(or know) I should look at before > changing the O2 sensor(if needed).>
...Injectors, MAP sensor, IAC solenoid, TPS, FPR, fuel filter, Fuel pump, > cap and rotor...all good. New EGR valve, EGR solenoid, and timing set. > Plugs look great and wires all have good Ohms. I should probably change > the plugs and wires before the snow falls though huh?>
What's everyone's ideas, opinions, and experiences about this?>


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CarGuru > Jeep Willys > Code 45 2 November 2005 18:58:54

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