welcome !
Hey fixkick,
I bring you a tough one... I hope you like it.
is this a stock engine? many sammi are not. now... long ago engine swapped.
1994 Sidekick 16v in Samurai. Federal emissions. G16b engine, 4 injectors? or 1 injector??????[/color]
Will not idle hot. (low rpm only, ?>) HOt or cold, , cold will be like 1500 , is it?)
I have checked for vacuum leaks, nothing I can find. (vacuum leaks cause IDLE way too high on G16a, on G16b low due to MAF by passing causes)
I assume its an EGR related issue. (if the valve is closed, its not this cause it only needs t0 close, EGR is inactive at idle , on all G16s)
do you have power loss? (if yes check sparking timing of huge retard, cam belt slipped, or check compression for huge drop, 150psi normal , 80 not, same cause.
When it's able to run, (very low rpm, probably 3-400) and I try the EGR stall test, there is no response.
The EGR exhaust path is probably 100% blocked, and is not it.
if an engine ever can run at 300, most will not, and you opened the EGR it must stall instantly. or the EGR is dead, but is a distraction here. all this EGR
worry, egr closed is what we want at idle, (the ECU defeats it at idle )
I have tried another EGR that I know is good. Still no response for stall test. (if the valve diaphragm ring moves open 1/4" then closes with finger then that main EGR valve is ok
I also cleaned out the passage way pretty damn well. (head tunnel too>? and exhaust port for egr?) path is long... but lets fix the real problem
you can drive great with no EGR at all. and is a great test to prove that, defeated, shows even runs great with no EGR.
then when engine is no running great, fix egr to pass smog or to get longer life of exhuast valves (they run cooler last longer) and CAT more happy. (NOX reductions)
There was a Check Engine light before I had to remove battery, but it hasn't come back and it's been a couple days.(my guess code 51 egr dead)
Where should I start for diagnosis?
fix RPM hot idle, 800 is spec, 400 is crazy low.
i do spark timing ony because its a 5min job. if retarded the cam belt slipped as all do over 60,k miles.
or do compression.
post both good bad and ugly
what does the car do driven. good or bad. both.
has full power?
misfires at cruise.
bogs
hesitates
overheats
the full story on driving, and even coming to a stop helps.
EGR love to stick open coming to a stop. (the idle switch closes, , egr is CUT dead, if it sticks open engine stalls or goes to 1/2 normal RPM)
Hey fixkick,
I bring you a tough one... I hope you like it.
is this a stock engine? many sammi are not. now... long ago engine swapped.
1994 Sidekick 16v in Samurai. Federal emissions. G16b engine, 4 injectors? or 1 injector??????[/color]
Will not idle hot. (low rpm only, ?>) HOt or cold, , cold will be like 1500 , is it?)
I have checked for vacuum leaks, nothing I can find. (vacuum leaks cause IDLE way too high on G16a, on G16b low due to MAF by passing causes)
I assume its an EGR related issue. (if the valve is closed, its not this cause it only needs t0 close, EGR is inactive at idle , on all G16s)
do you have power loss? (if yes check sparking timing of huge retard, cam belt slipped, or check compression for huge drop, 150psi normal , 80 not, same cause.
When it's able to run, (very low rpm, probably 3-400) and I try the EGR stall test, there is no response.
The EGR exhaust path is probably 100% blocked, and is not it.
if an engine ever can run at 300, most will not, and you opened the EGR it must stall instantly. or the EGR is dead, but is a distraction here. all this EGR
worry, egr closed is what we want at idle, (the ECU defeats it at idle )
I have tried another EGR that I know is good. Still no response for stall test. (if the valve diaphragm ring moves open 1/4" then closes with finger then that main EGR valve is ok
I also cleaned out the passage way pretty damn well. (head tunnel too>? and exhaust port for egr?) path is long... but lets fix the real problem
you can drive great with no EGR at all. and is a great test to prove that, defeated, shows even runs great with no EGR.
then when engine is no running great, fix egr to pass smog or to get longer life of exhuast valves (they run cooler last longer) and CAT more happy. (NOX reductions)
There was a Check Engine light before I had to remove battery, but it hasn't come back and it's been a couple days.(my guess code 51 egr dead)
Where should I start for diagnosis?
fix RPM hot idle, 800 is spec, 400 is crazy low.
i do spark timing ony because its a 5min job. if retarded the cam belt slipped as all do over 60,k miles.
or do compression.
post both good bad and ugly
what does the car do driven. good or bad. both.
has full power?
misfires at cruise.
bogs
hesitates
overheats
the full story on driving, and even coming to a stop helps.
EGR love to stick open coming to a stop. (the idle switch closes, , egr is CUT dead, if it sticks open engine stalls or goes to 1/2 normal RPM)
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