General Motors trademark referring to a series of emissions technologies that were implemented into a range of engines produced for GM vehicles. These are both gasoline (petrol) and diesel engines. ECOTEC equates to "Emissions Control Optimization TEChnology".
Questions tagged [ecotec]
17 questions
10
votes
2 answers
Malibu turns over, does not start
2005 Malibu (Classic, fleet version) with 2.2 L Ecotec four-cylinder engine fails to start. It turns over, and scattered weak pops indicate that there’s rudimentary combustion going on, but it does not catch.
I’ve pulled the plugs, there was spark,…
theUg
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7
votes
2 answers
2004 Saturn ION with Ecotec 2.2: Engine misfire with code P0300, ICM problem?
Car came in with a misfire complaint and check engine light on with code p0300. Looking at misfire history confirms high misfire counts on cylinders 1 and 4 along with lower counts on cylinders 2 & 3.
Fuel trims OK LTFT < 10.
Plugs are…
Ben
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6
votes
1 answer
Should misfire counts be zero?
'07 Cobalt LS, 2.2 L I-4
Car is not getting a misfire code. (p030x) However, the mode 6 data shows Non-zero "misfire counts" on all cylinders. The counts are single- or double-digits, and are very low at highway speed. I don't feel any misfires,…
George
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5
votes
1 answer
Block flatness tolerance?
2006 Solstice (says hello). The engine overheated for some reason, going from ~200F to ~300F in a matter of seconds. (Actually, the gauge changed directly from 203F to 298F.) The head is over at the machine shop getting milled and a valve job. They…
3Dave
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4
votes
1 answer
What is Opel/Vauxhall's TwinPort Technology?
Some Opel Engines come with something called TwinPort Technology.
I guess that this increases power, as the original Z12XE (1.2) engine has 55kW, and the TwinPort (Z12XEP) version engine has 59kW of horsepower.
How does it work?
Why does it work?
Is…
George
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3
votes
0 answers
2.2 ecotec on 2008 Cobalt - Timing chain tensioner will not come out of head
Asked this on a message board, no luck.
Got an odd one for you here. My mom's Cobalt started having the notorious ticking around 100k. Went and installed a new timing chain tensioner. I misread the directions and thought I had to bang on the…
Phil Smith
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2
votes
0 answers
injectors: CA and Fed types not interchangeable?
'07 Cobalt, 2.2L Ecotec; CA emissions spec (RPO L61)
I inadvertently tried to install a Fed-emissions spec injector in our CA-emissions engine. AFAICT, it would not seat properly in the intake manifold, which also prevented the other injectors from…
George
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2
votes
1 answer
2014 Chevy Impala Oil Sensor Location (P055b Engine oil pressure sensor/switch B - circuit range/performance)
My 2014 Impala LS (2.5L Ecotec) is throwing an OBDII code for P055b. Immediately checked oil level with dipstick, all is fine there. I'm assuming that the sensor/switch (whichever it is) has simply failed. Problem is, I don't know precisely where it…
Scott Hoffman
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1
vote
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Theft-deterrent lockout. Chevy Cruze
2016 Chevy Cruze Gen 1, 1.4T. 60K miles.
Starting last fall, car has intermittently declined to start. Instead, it shows a "Service Theft Deterrent System" message. I don't see a pattern to these events. We have two flip key/fobs, one with a new…
George
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1
vote
1 answer
ECU update rate?
('07 Cobalt LS, 2.2L Ecotec)
Using an OBDlink SX USB adapter and their OBDwiz app on an old laptop, I get the chart below. Engine is at steady (800 rpm?) idle, closed-loop. The displayed data has inflection points about 1/2 second apart. Does…
George
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1
vote
2 answers
Location of MAP (Manifold Absolute Pressure) sensor on Corsa D 2012 A14XER Engine
I read online that MAP sensors are usually near/around the intake manifold areas. I have looked all around with torch light as well as feeling by my hands on areas not visible. I could not find it. On slightly different/ older models of these…
ShanjayG
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1
vote
0 answers
Running rough in the cold 03 cavalier
I have a 2003 cavalier with the 2.2L ecotec. In the cold weather it runs terribly and doesn't get better even when engine has been warmed up. The engine will shudder when I give it gas from a low rpm before picking up, it runs noticeably noisier,…
Crispovik
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1
vote
0 answers
Any stable alternatives for Z22YH (GM Ecotec GDI engine) high pressure fuel pump?
the main problem with these pumps (part number 815049) are:
1. Expensive: about 400€ for a new one, very hard to find a working old one.
2. Membranes: the membranes used in these pumps get broken quite fast and there is limited supply of new ones,…
Thesubhuman
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0
votes
1 answer
What could be causing a P0013 engine code to turn on and off on a 2.4L Ecotec in 2014 Buick Verano?
Recently, my 2014 Buick Verano's (2.4L Ecotec engine) check engine light came on. It would turn on and off seemingly randomly though between engine starts.
I took it to a retail auto parts chain to get it scanned, and the code was P0013 "Variable…
Timothy G.
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0
votes
2 answers
engine mount bolt torque (Ecotec)
('07 Cobalt LS, 2.2 L)
Re the passenger side engine mounts, ...
The Alldata manual (AIUI, from Helm) says
Tighten the engine mount to body nuts to 66 N.m (49 lb ft).
Tighten the engine mount to bracket bolts to 130 N.m (96 lb ft) plus
45…
George
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