Code 4

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10-30-2005, 05:58 PM

bobby

0.5 BAR

Thread Starter

Join Date: Jan 2005

Posts: 77

Code 4

Guys help, 92 civic sedan with a d15b vtec, runinng P28 ecu... would this code also cause the idle to jump up n down??

10-30-2005, 06:32 PM

Ravage70

3.0 BAR

Join Date: Jan 2004

Posts: 5,933

Re: Code 4

code 4:
If the bus goes over 50mph and then reduces speed under 50mph it will explode.
Make sure u jump the bridge

10-30-2005, 06:42 PM

solfly

1.5 BAR

Join Date: May 2005

Posts: 698

Re: Code 4

i thought 4 was danger to manifold
keep an eye on your floor board

10-30-2005, 06:50 PM

dragon

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Join Date: Dec 2003

Posts: 8,155

Re: Code 4

if your referring to error code its your crank position sensor

10-30-2005, 07:05 PM

warric_k

1.5 BAR

Join Date: Sep 2003

Posts: 708

Re: Code 4

it _shouldn't_, it's used for cranking purposes only.

check your IACV and FITV if you have one.

10-31-2005, 03:23 AM

bobby

0.5 BAR

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Join Date: Jan 2005

Posts: 77

Re: Code 4

come-on guys please help me out, you guys knew what I met. whats best way of solving this problem??

10-31-2005, 02:28 PM

boosted_hatch_216

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Join Date: Mar 2005

Posts: 728

Re: Code 4

two people tried. probably your iacv.

10-31-2005, 03:33 PM

HMT-Admin

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Join Date: Dec 2002

Posts: 13,991

Re: Code 4

http://www.we-todd-did-racing.com/we...MxeTU0MQ%3D%3D
http://www.we-todd-did-racing.com/we...MxeTU0MQ%3D%3D

Heres the manual for trouble shooting, (this is obd0) but its pretty much still the same. 90% of the time when I have a code 4/8/9 I usually end up replacing the distributor. I always suggest clearing the code first, and making sure all the pins for the distributor connector are nice and tight.

Will this cause idle problems? ehh, I dont think so. I'd fix the check engine light first then start trouble shooting your idle problem. Its possible the fit valve needs to be adjusted or your having a iacv going out.

Jeff