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'91 Sammy runs rough
#4
Topic FrankenKicks. (where any things is possible under the hood) I love em , fun to get them happy sure.
code 51 is EGR Dead.
and 51 is done 3 or more ways 1989 to 2004 sidekicks
and not the same CALIF or FED ecu.
the EGR thermo sensors is a CALIF first car used, then copied by Suzuki to the 1995 year so not unique to CALIF and in 1996 they went to EGR MAP way.
a17, ? ECU pin (EGRT)

I have the full ECU lists of all p/n used by suzuki and GOE both, in the sidekick forum under ECU pdf

B50 is it. sub code
here it is, my work

https://fixkick.com/ECU/EPC-ECU96-98/all...9-95NA.pdf

looking now to see what that is.
you do know I have the ECU EGRGT bypass resistor trick right>? >
is that ECU outside USA???????? you in Georgia?


no it is not a B50 ECU it is a 1995 B51,
the label in ebay if fuzzy , and hard to read by me but is a B51. or B5x, with x being upgrades to base like ECU) the upgrades are a secret never told.

B51 , 8v, manual trans. Federal model not CALIF.
okay , A17 8v is IAT sensor intake air temps. just put back the sensor
A17 uses special ECU sensed ground A24 pin
and in fact seen here all those facts off main ECU pages
https://fixkick.com/ECU/8v-tbi-schematic91to95.jpg

EGR temp sensor is pin a16
and a dummy resistor there makes ECU thinks it is happy. 10,000 ohms any watts.
as seen here
http://fixkick.com/EGR-H3LL.html

run with O2 sensor unplugged, so it can run right if does the 02 sensor is stuck at 0vdc, causing huge rich misfire
is the injector stock?
do both injector pins pulse, and not 1 hacked to make it run as seen by hackers.?
8v uses a dual transistor driver to both pins if one is dead hacker hot wire the pin and not runs rich forever.
both pins TBI injector must pulse I have scope photos of both if needed.




IAT error is a totally other code
called
DTC code 23
per DTC page
here

http://fixkick.com/ECU/DTC-errors/DTC-jtgh.html



the EGR valve is 100% useless with the CAT missing
the EGR modulator is dead with CAT missing, because there is no more CAT backpressure to make it work at all.
so 10,000 ohm it.
when the EGR opens the EGRT gets roasting hot and reads 10k ohms and code 51 passes. the sensor real is just a thermister.

I call 02 problems , wrong injector, well lots rereally
1: o2 dead stuck at 0vdc
2: fuel pressure too high for sure at idle if super rich at idle.
3: Map failing or VAC to it ,connected wrong.
4: injector tip leaks when it is closed.
5: injector o-rings leak all the time key on.
6:ECT sensor is dead or the wrong one put there, the ones sold for EUROPE can never work, ebay hell there.
ECT is super easy to test on my ECT page. in pan of hot water, and ohm meter (DMM)
7": thermostat missing/ bad or wrong one or those silly fail safe kind now stuck in fail safe mode FOR EVER.(stuck open for ever)

that is all I can think of in seconds.
http://www.fixkick.com
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Messages In This Thread
'91 Sammy runs rough - by Jim Blackwood - 05-18-2023, 01:54 AM
RE: '91 Sammy runs rough - by fixkick - 07-14-2023, 05:49 AM
RE: '91 Sammy runs rough - by Jim Blackwood - 04-09-2024, 01:43 AM
RE: '91 Sammy runs rough - by fixkick - 04-09-2024, 02:21 AM
RE: '91 Sammy runs rough - by fixkick - 04-09-2024, 02:23 AM
RE: '91 Sammy runs rough - by Jim Blackwood - 04-10-2024, 12:20 AM
RE: '91 Sammy runs rough - by Jim Blackwood - 04-10-2024, 07:15 AM
RE: '91 Sammy runs rough - by fixkick - 04-10-2024, 11:01 AM
RE: '91 Sammy runs rough - by Jim Blackwood - 04-10-2024, 12:44 PM
RE: '91 Sammy runs rough - by Jim Blackwood - 04-11-2024, 01:12 AM
RE: '91 Sammy runs rough - by Jim Blackwood - 04-12-2024, 06:38 AM
RE: '91 Sammy runs rough - by Jim Blackwood - 04-13-2024, 01:58 AM
RE: '91 Sammy runs rough - by fixkick - 04-13-2024, 03:20 AM

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