that is so easy the rules.
you need to drive in a certain way for the EGR monitor to complete.
(and there are 2 tests, not 1)
my new egr pages has the rules right there ,
if the main valve looks clean, then it is,
did you look at the hidden oriface in the plenum conn. point behind TB.
EGR-repair-methods
is your exhaust still OEM stock, with no missing, CAT con or rodding out or such tricks?
is 400 the only failure?
are you having other symptoms.?
60mph where on earth did that come from, speed limit is 55 , ended in 95
your car was being designed before that day. so are saying the monitor must run at an illegal speed, no way.
test 1 , above 18.6mhp
test 2, 28.6 min.
dont that make better since?
rational speeds.
the rules are tricky and a PITA, for sure. no dought.
http://carfix.stufftoread.com/sensor...EGR-AB-MON.zip
that is a GM document. annotated by me.
tests are conducted 1 time per driving cycle.
2 second test.
you didnt say tranny type and as you see RPM is critical. over 30mph id say is a go all around so do that and
cruise at 2400 rpm ( both AT AND MT)
LOAD, i presume up small hills but not too big. ( vacuum and MAF derived load are deciding points.)
id say drive mixed driving , but cruising not city.
notice it says, very little throttle change , so hold the foot still , ok.
note rpm delta (change) is small, so again keep foot realllllll steady.
wait 4 minutes for tests to start.
car must be hot so above is silly , 4min is long past. full hot , not ever at 158deg F.
coolant temp that is ....
Egr must be active, which means moving and all EGR active rules in force and true.
the second test is , fuel cut mode. so just be cruising way above 28mph and then cut throttle and leave it alone as long as possible.
you need to meat the 22 inches of HG for both tests, or more.
the send test will pass this easy as you are decelerating.
the fist test , 22 inched, is harder.
60mph , ouch.
the EGR is activate ONLY
rules:
never idle.
never , W.O.T.
only cruising.
only HOT (fully)
and the more load on engine, the more EGR FLOW.
but for the monitor to run, you can NOT overload the engine. 31% max.
a scan tool allows you to monitor most of these parameters.
so a helper is the only safe way. to do it.
i figured car is a 1.6L and not 1.8 cuz GM dont do the 1.8 thing.
what tranny you got/.
notice is warns of switch changes.
so dont be throwing the AC on or PS to agains stops , or bumping car in to neutral during the monitor or it will abort the test.
it thing it take 40 keys cycles to
i think i found your old refr.
OBD II Drive Cycle (reset car diagnostic monitors )
that second part does not apply to Suzuki, cloaked in GEO skins.
no way.
my page is real OBD2 on real, suz/gm 96.
you are correct tall tires puts you over 55mph, but not that much.
not 15mph. no way.
i dont think the general cycle applies to EGR anyway, this is just to get all the geedunk tests done.
The dreaded P0400- 2 weeks and 1000 miles
Linear Mode
