Hey guys so I swapped a good running b20b4 into my 99 ek checked compression 139 on all 4 cylinders new plugs cap rotor no vacuum leaks checked three times smoke tested and brake clean tested no cel revs out fine and perfect no cut out replaced ect sensor map sensor tps and it's calibrated to spec new intake gakset new injectors flow tested and checked timing three times!!! Dead on the money I've been working on this for three months please help lol Idk what else to do oh yeah the problem is at idle after warmed up idles at 750 and all the sudden just does out of know where but starts right back up Everytime and I also replaced iacv and fuel filter when it dies it acts like I turned the motor off it makes no sense!!! I've checked the harness grounds and cleaned them especially the thermostat housing ground still no luck so please guys any ideas thank you!

 

What computer are you using ???

 

Obd2b to obd1 jumper to obd1 p75

 

Also I adjusted valves to spec and changed fuel pump with crv fuel that motor came out of and cleaned and replaced grounds no change I noticed driving it at night lights will be dim at low rpms then brighten up at high rpms but tested alternator 13.9 at idle when it idles lol and battery was 12.9 when car is off wtf lol I'm at a loss guys please help

 

Bump please

 

First, please stop double posting. Second, stop panicking and take a deep breath. Logical thinking goes out the window when you are upset. Logically, why you would think that an ECU programmed for a 1.8L engine would run a 2.0L engine PERFECTLY seems a bit presumptive. There are MANY possible issues... I assume that you have used a LS style intake manifold, just so it will clear the hood. The next question would be did you install a pair of LS camshafts into the engine ??? What throttle body are you using ??? Do you have an adjustable fuel pressure regulator ??? If so, I suggest you increase the idle static (vacuum line disconnected) fuel pressure up to 50 psi and then see what happens.

Also, assuming that you did the compression test correctly... values of 139 suggest the engine is damaged and you cannot expect it to run optimally. The MINIMUM compression required is 135 for cylinder combustion... a healthy B18/B20 will read around 180.

 

Im sorry bout the double post! Just wanna figure this out I have not installed any ls cams and the ls ecu is supposedly run the engine fine lean it out a little but I'm gonna get a base map for it but wanna fix the idle problem first and I'm using a lot fuel rail throttle body injectors and regulator and I pulled vac line off regulator and it didn't change are you thinking the head gasket is bad? But there's no antifreeze in oil or milky antifreeze no signs to indicate bad head gasket

 

Dammit dude..didn't Dong tell you about taking a breath when you write on another site?..lol. Use f'ing periods, commas and sentence breaks so we can read your **** easily and coherently.
Dong told you all this..yet you disregard: https://www.civicforums.com/forums/1...ease-help.html
Dong speaks in third person when Dong is worked-up. So please forgive Dong for being a dong..lol.
Your engine doesn't care if you want to spend money on a basemap..it just wants to run + whatever that takes (possibly a basemap ECU?)
Since you've thrown a shitload of parts at it you might as well add a Denso (part# 234-4099) primary o2 sensor to it and see if that cures it. Walmart has one via online purchase for $30 https://www.walmart.com/ip/Denso-Oxy...-4099/34185971