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EGR Cruise Test failure
#2
so simple the EGR test fails.
1995 MPI
what ECU is there. that dictates what EGR you have
is car a USA car.
one is Calif
one is FEDeral USA>
one uses EGR thermoprobe to test EGR
other FED uses vacuum readings to test EGR.
did you read my EGRT page, on ohms tests.

here is what happens if EGR is missing you get DTC error 53, do you, missing, that shows its calif ecu, the ECU PN tell us if it is.
then what happens if all is right ECU/harness/egrt is correct
the car engine is hot
the car moves and then the EGR valve opens (if cat is present and the modulator works) the head tunnel gasses flow, and heat the EGRT and the test passes.
a 10c resistor can be used in place of the EGRT and fools it. I see you are going to do that.
your not guessing you are correct.


what ECu #
what harness,stock?
is the EGRT correct for calif?

sorry for cash lost.
its just code 51s if car drives good and no limphome mode and MPG is good, all is good. do you get smog tested that it? why 51 worries?

this is the egrt spec.

http://www.fixkick.com/EGR-Gen2a.html#thermoprobe


a 10k resistor will make it pass, in most cases.
the silly tying does only 2 tests no 3.
key one dead cold engine, if resistance is infinity it sets code 52
then when EGR is commanded open , it waits a bit, for the sensor to warm up and checks it 1 time,pass or fail.
it is dumb.
fore example it dont check and see omg its 10k for ever. (1996 it goes super strict testing)
do no not buy a new sensor just test it.

I bet its ok.

does the EGR open by itself hot, when you gun the throttle?, (need mirror to see it, facing engine, parked, brakes set and not in gear) ok i see you did.
but the stall test would make the EGR go roasting hot. but the above test is acid test. can ECU open the EGR main.

my guess.
EGRt bad (nah)
wires bad.
wrong ECU.
if the ECU is federal then the EGR is not used at all..... no code 53 pulled sensor, is that.
the FED car has no EGRT. so now 53s for missing EGRt.
easy to test and see doing that. no ripping ecu out and reading tag

oops my bad I think the last year 1995 all ECU use CALIF setup, EGRT.\\

see this yet, shows them all, USA
http://www.fixkick.com/ECU/EPC-ECU96-98/...9-95NA.pdf

ECU:
dash 70Exx

EA0
EC0
and ED0
gee looks like dash 70xxx is all EGRT ecu's if you look close. 1995
http://www.fixkick.com
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Messages In This Thread
EGR Cruise Test failure - by jingusflob - 02-03-2018, 11:08 AM
RE: EGR Cruise Test failure - by fixkick - 02-03-2018, 11:50 AM
RE: EGR Cruise Test failure - by fixkick - 02-03-2018, 12:00 PM
RE: EGR Cruise Test failure - by jingusflob - 02-03-2018, 03:07 PM
RE: EGR Cruise Test failure - by fixkick - 02-07-2018, 04:33 AM

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