Last post on Oct 17, 2006 at 8:12 PM
You are in the Chevrolet S-10 & GMC S15 Sonoma
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Chevrolet S-10, GMC Sonoma, GMC S-15, Truck
#1011 of 2018 Error Code: P0122 TPS circuit low input
Aug 21, 2005 (10:43 am)
I've been getting that code on my 2000 chevy s10 2.2 auto, the truck normally starts running ok but after a few minutes I get the SES light on and starts acting up. it shifts really hard, it doesn't downshift if I floor the gas, in fact it doesn't do any downshifting unless I stop completely, any ideas?
#1012 of 2018 Re: Error Code: P0122 TPS circuit low input [nestor]
Aug 22, 2005 (9:01 am)
Test the TPS or just replace if it's not much money, the transmission goes into default, full pressure. The computer needs to see throttle position to know when to shift, it's all related to the TPS problem.
#1013 of 2018 Re: Error Code: TPS/Pedal Position Sensor A CKT Range/Perf [freddymac33]
Aug 22, 2005 (10:51 am)
tps is your throttle position sensor, dont know if you've had any problems
like spitting, sputtering at take off or not, but I have a 2000 s10 2.2L, and
had to replace mine for that reason......good luck
#1014 of 2018 Re: Error Code: TPS/Pedal Position Sensor A CKT Range/Perf [freddymac33]
Aug 22, 2005 (10:55 am)
tps sensor about $65, depending, and also is a special order part or
#1015 of 2018 S10 misfire code p0302
Aug 22, 2005 (3:58 pm)
I'm new to these posts so hoping someone here may be able to shed some light on my 98 S-10 2.2 5 speed. The truck has developed a miss at all speeds..... idle, acceleration..doesn't go away accept on deceleration..probably still there, just not noticable. SES light is on and a code p0302 is there...misfire number 2 cylinder...sounds easy so far.. so here's what has been done to try to correct the problem. Ignition module, both ignition coils, plug wires and plugs were all changed. No improvement. Also did a compression test..all cylinders reading even..175-180 lbs each. I checked for good spark at each plug wire and is firing. I used a long screwdriver to listen to the injectors to see if they were all at least ticking..they all were and none louder than another. I have searched and searched for a flowchart or diagnostic tree for this code to maybe steer me in the right direction. It must be classified information. Now, can anyone tell me if the code is generated by the computer sensing the ignition module or from the injectors, or both, or neither??? I would drive it to Auto Zone for a scan but the inspection sticker is expired and wont pass emissions inspection until I can correct this. Plus, it's running so bad I'm afraid of doing serious damage to it. Has anyone else had to deal with this before?? I unplugged the injectors one at a time and verified that number 2 is the culprit...very little or no change when disconnected. There is no smoke from the exhaust. However, I do suspect an injector because I cannot think of anything else it could be....any thoughts???? My brother bought this truck new and has never had a problem until this. And this started suddenly. I think I listed everything I can say that is related to the problem....btw the truck has 110k on it.. Any help would be GREATFULLY appreciated. Thanks, Steve
#1016 of 2018 Re: S10 misfire code p0302 [steve77581]
Aug 23, 2005 (9:25 am)
I would try some injector cleaner, if that won't work you could change the injector. They are not cheap so you could swap 2 and see if it moves. Techron is one of the better injector cleaners, just put it in the tank.
#1017 of 2018 2000 S15 Engine Problems
Aug 23, 2005 (10:48 am)
I had troubles last winter starting my 2.2L 5-speed Sonoma when it sat for a few days when the fuel level was below 1/4. Now I've experienced problems when driving the truck around town and it starts to act like its running out of fuel. This has happened when the tank was well above half. If I kept feathering the gas pedal it will keep running. If I shut it off and re start it seems to run normal. The first two incidents occurred without a SES display. Now the symptoms have changed and the truck seems to have less power and the SES display has lit but disappeared before I could get it to the dealer(1-2 days). I had the fuel filter with pressure regulator replaced as well as top end cleaning. Does anyone have any ideas?
#1018 of 2018 Re: 2000 S15 Engine Problems [dmatthews]
Aug 23, 2005 (10:58 am)
I had exact same problem on my 2000 s10, they can still pull the code, if
they go into code history on their code reader. the computer does save the code even though ses goes out. the problem is most likely your tps(throttle position
sensor) common on these vehicles. good luck
#1019 of 2018 Re: 2000 S15 Engine Problems [dmatthews]
Aug 24, 2005 (4:30 am)
As a last resort - make sure there is nothing floating around in your tank... a piece of plastic / bag or something else will suck up to the strainer - then float away after you kill the engine/suction ....
#1020 of 2018 Throttle Position Sensor - 98 Chevy S10
Aug 24, 2005 (7:35 am)
I've had the truck in the shop and the indication of the code that set and the way the truck drives is that the TPS needs to be replaced. My mechanic said to just watch it for awhile and see what happens. Well, nothing happened for about 2 months and I'm having problems again. What is the procedure to DIY the replacement of the TPS? Any special tools required? Need help.