welcome to you, from the 50th state, 5-OH'
Cold surge or hot, I bet HOT.
to get the USA federal tracker CEL to work right you must first disable the NAG switch , then and only then can the fuse diag jumper work and flash. codes.
suzuki has parts, many are now discontinued.
Rockauto has tons of parts for car.
89 with VIN starting in J means its made in japan as the filter 3 month the were, then 2CN , VIN prefix car, are all made in CAMI, (Europe has Hungary and SPAIN made too)
so drives ok otherwise, 8v engine, 5speed stick shift, and 4wd or 2wd?
the surge is vacuum leaks.
the ECU goes nuts with leaks.
the leaks cause surging because the ECU cant old hot idle at 800 rpm. so surges like mad to find 800, an illegal idea today, for sure with A'T transmissions.
first lets do nag. (only on FED car, not California or canada or any other country, it's a USA thing only)
we now go to nag page
Slide this switch, or remove it. (it is useless...)
http://www.fixkick.com/CEL/NAG-Lamp.html
now it flashes 12s. on demand if no horror failures.
code 51 is bad EGR.
now surge.
1: the TB er, throttle body, has on the right side face it a DP,dash pot. it must hold idle fast cold at 1500 rpm about and then 3 to 30 seconds latter, 5 in hawaii. it fully retracts.
that means it has gap in the end of the DP pushrod. air space,
next is TV closed.
the throttle valve is near closed, the throttle cable needs, 10mm slack, foot off throttle pedal.
next are vacuum leaks.
one trick on 89, is to find the throttle stop screw, (no touch 91+) but this screw can be unscrewed say 1/2 a turn and the ISC may wake up. and stop surging.
vacuum hoses cracked, or fell off.
the screw is here, so is DP.
http://www.fixkick.com/IDLE-AIR/Slide_Sh...age_2.html
turn it ccw, counter clock wise, 1/2 turn of 1 turn,, if no hot idle fix 800 rpm, head lamps off, blower off (heater) no defrost on. no AC on.
then put it back those turns if not a cure.
and find the vacuum leak.
its not easy, lots of places to leak
they can leak here.
![[Image: 90_EFI-1w.jpg]](http://www.fixkick.com/IDLE-AIR/Slide_Show/images/90_EFI-1w.jpg)
Cold surge or hot, I bet HOT.
to get the USA federal tracker CEL to work right you must first disable the NAG switch , then and only then can the fuse diag jumper work and flash. codes.
suzuki has parts, many are now discontinued.
Rockauto has tons of parts for car.
89 with VIN starting in J means its made in japan as the filter 3 month the were, then 2CN , VIN prefix car, are all made in CAMI, (Europe has Hungary and SPAIN made too)
so drives ok otherwise, 8v engine, 5speed stick shift, and 4wd or 2wd?
the surge is vacuum leaks.
the ECU goes nuts with leaks.
the leaks cause surging because the ECU cant old hot idle at 800 rpm. so surges like mad to find 800, an illegal idea today, for sure with A'T transmissions.
first lets do nag. (only on FED car, not California or canada or any other country, it's a USA thing only)
we now go to nag page
Slide this switch, or remove it. (it is useless...)
http://www.fixkick.com/CEL/NAG-Lamp.html
now it flashes 12s. on demand if no horror failures.
code 51 is bad EGR.
now surge.
1: the TB er, throttle body, has on the right side face it a DP,dash pot. it must hold idle fast cold at 1500 rpm about and then 3 to 30 seconds latter, 5 in hawaii. it fully retracts.
that means it has gap in the end of the DP pushrod. air space,
next is TV closed.
the throttle valve is near closed, the throttle cable needs, 10mm slack, foot off throttle pedal.
next are vacuum leaks.
one trick on 89, is to find the throttle stop screw, (no touch 91+) but this screw can be unscrewed say 1/2 a turn and the ISC may wake up. and stop surging.
vacuum hoses cracked, or fell off.
the screw is here, so is DP.
http://www.fixkick.com/IDLE-AIR/Slide_Sh...age_2.html
turn it ccw, counter clock wise, 1/2 turn of 1 turn,, if no hot idle fix 800 rpm, head lamps off, blower off (heater) no defrost on. no AC on.
then put it back those turns if not a cure.
and find the vacuum leak.
its not easy, lots of places to leak
they can leak here.
http://www.fixkick.com