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car stalls when coming to a stop.
and i have to push the the gas pedal about a inch in a hold it to get the car to bearly start.
and car will idle high once in a while, for different peroids of time.

Bad TPS maybe?


someone suggested the IAC too.

thanks for any info.

Check engine light on? Any trouble codes being stored?

It could be the IAC.
Cleaning the throttle body, cleaning the IAC bore, and replacing the idle air control valve could solve your issue.

A vacuum leak or sticking EGR valve can cause stalling and hard starts too. Usually a vacuum leak or partially stuck EGR valve will cause a rough idle.

Usually a TPS doesn't cause stalling. Usually, a faulty TPS will cause hesitation and will trigger the check engine light. If it shorts to where the ECM thinks the throttle is wide open, the ECM may put the fuel system into clear flood mode and cause a no start. You can check the TPS sensor with a volt meter. The TPS signal should be somewhere around .5 volt when the throttle is closed and 4.5V when the throttle is wide open. As you open the throttle you shouldn't see any dead spots in your readings as the voltage climbs. It is better to use an old analog meter to check TPS voltage cause it shows real time measurements. You should also have a good ground to the TPS and a 5V reference from the ECM.

engine light is not on.

does my car even have a EGR valve?

i ran my hand down the IAC and there was suction.

(You said) engine light is not on.

At this time and for future reference, you should treat the check engine light as if it doesn't exist. Do a scan regardless of the check engine light status and post any codes. 95 was a strange year for GM codes. Use whichever (link below) is best suited for your vehicle to access the codes.


http://www.troublecodes.net/saturn/

http://www.troublecodes.net/GM/

could the tps be bad even if the light isnt on?

could these be symptoms of a blown head gasket

How do you run your hand down the IAC? Your hand won't even fit.

(You asked) could the tps be bad even if the light isnt on?

Based on the description of the problem the "MIL" should be on with this issue. However, frequently in auto mechanics an issue occurs without setting the "MIL" when it should.

Could the "MIL" be defective?
Could it have been disconnected?

To find out watch the dashboard while starting the car. The "MIL" icon should come on along with all the icons and indicators lights then it should go off. If you don't see the "MIL" come on at start up, it is either defective or has been disconnected.

Again. Just ignore the "MIL" and do a scan


(You asked) could these be symptoms of a blown head gasket

No they are not.

i scanned it all i got was one and two thats nothing

Did you try cleaning the throttle body and IAC bore? A bad idle air control valve could set a 35 code, but not always.
Have you checked the TPS sensor voltage to see if the TPS functioning properly?

(You said) i scanned it all i got was one and two thats nothing

It may appear as 1 and 2 but it’s actually 12. 12 must flash 3 times before the computer can enter diagnostic mode. After that the MIL will flash the codes.

Examples only.

MIL flashes 12 12 12 to indicate computer has entered diagnostic mode.
MIL flashes 43 43 43 three times. This means 43 is the first code.
MIL flashes 12 12 12 again.
MIL flashes 44 44 44. This means that 44 is the second code.
MIL flashes 12 12 12 again.
MIL flashes 45 45 45. This means 45 is the third code.

The MIL will continue to flash in this manor until all codes are displayed. When all codes are displayed the MIL will flash 12 12 12. At this point if no additional codes are flashed after 12 12 12 the MIL is indicating that there are no more codes.


You should do another scan to confirm it was done correctly the first time.



To enter the self-diagnostic mode, either connect a scan tool to the ALDL or DLC. On 1991-95 models, use a jumper wire to connect terminals A and B of the ALDL. Turn the ignition switch ON , then the PCM will enter the diagnostic program and report trouble codes on the scan tool or by flashing the SERVICE ENGINE SOON light.

All codes are 2 digits between 11 and 99. Codes are displayed on the SERVICE ENGINE SOON light by flashing the light with short and long pauses to distinguish digits of one code from digits of another. The short pause is used between digits of the same code, long pauses are between different codes. For example, the Code 12 sequence will be: flash, pause, flash-flash, long pause.

When the diagnostic mode is entered, Code 12 is displayed 3 times. This indicates that the internal diagnostic system is operating. If Code 12 is not displayed, the self-diagnostic program is not functioning properly. If only Code 12 is displayed, no system malfunctions have been stored.

Any existing system fault codes are displayed in order from low to high, except for Code 11. Each code is displayed 3 times, followed by the next code, if any.

On vehicles with an automatic transaxle and on which exist stored transaxle codes, Code 11 will be displayed last, then the SHIFT TO D2 (1991-1992 models) or HOT (1993-98 models) light will begin flashing transaxle codes or flags.

When all engine and transaxle codes have been displayed, Code 12 will flash again. At this point, all output devices are driven, except the fuel pump, so these circuits can be checked.

This procedure can be repeated as required by cycling the ignition switch OFF , then ON again with the ALDL terminals jumped together. The code display will begin again as in Step 1.

it was just 12 12 12